The Plant List — A working list for all plant species

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Results

4994 plant name records match your search criteria Euphorbia. The results are below.

• Genus Euphorbia is in the family Euphorbiaceae. Species epithets begin with: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

The results can also be downloaded as a CSV file.

See "Status", "Confidence level", "Source" for definitions.

Name	Status	Confi­dence level	Source
Euphorbia aaron-rossii A.H.Holmgren & N.H.Holmgren	Accepted		WCSP
Euphorbia abbottii Baker	Synonym		WCSP
Euphorbia abbreviata Thuill. [Unplaced]	Unresolved		WCSP
Euphorbia abbreviata Correll [Illegitimate]	Synonym		WCSP
Euphorbia abchazica Woronow	Synonym		WCSP
Euphorbia abdelkuri Balf.f.	Accepted		WCSP
Euphorbia abdita (D.G.Burch) Radcl.-Sm.	Accepted		WCSP
Euphorbia abdulghafooriana Abedin	Accepted		WCSP
Euphorbia abolinii Korovin ex Pavlov [Illegitimate]	Synonym		WCSP
Euphorbia abortiva Forssk. [Unplaced]	Unresolved		WCSP
Euphorbia abortiva Porta	Synonym		WCSP
Euphorbia abramsiana L.C.Wheeler	Accepted		WCSP
Euphorbia abyssinica J.F.Gmel.	Accepted		WCSP
Euphorbia abyssinica var. erythraeae A.Berger	Synonym		WCSP
Euphorbia abyssinica var. mozambicensis Boiss.	Synonym		WCSP
Euphorbia abyssinica var. tetragona Schweinf.	Synonym		WCSP
Euphorbia acalyphoides Hochst. ex Boiss.	Accepted		WCSP
Euphorbia acalyphoides subsp. acalyphoides	Accepted		WCSP
Euphorbia acalyphoides var. arabica Boiss.	Synonym		WCSP
Euphorbia acanthodes Akhani	Accepted		WCSP
Euphorbia acanthothamnos Heldr. & Sart. ex Boiss.	Accepted		WCSP
Euphorbia acaulis Roxb.	Synonym		WCSP
Euphorbia acerensis Boiss.	Accepted		WCSP
Euphorbia acervata S.Carter	Accepted		WCSP
Euphorbia achanocarpa Guss. ex Spreng. [Illegitimate]	Synonym		WCSP
Euphorbia acrurensis N.E.Br.	Synonym		WCSP
Euphorbia actinoclada S.Carter	Accepted		WCSP
Euphorbia aculeata E.Mey. [Invalid]	Synonym		WCSP
Euphorbia aculeata Forssk.	Accepted		WCSP
Euphorbia acuminata Lam.	Synonym		WCSP
Euphorbia acuta Bellardi ex Colla [Unplaced]	Unresolved		WCSP
Euphorbia acuta Engelm. [Illegitimate]	Synonym		WCSP
Euphorbia acuta var. stenophylla Boiss.	Synonym		WCSP
Euphorbia acutifolia (Boiss.) Rech.f.	Synonym		WCSP
Euphorbia adenensis Deflers	Synonym		WCSP
Euphorbia adenochila S.Carter	Accepted		WCSP
Euphorbia adenochlora C.Morren & Decne.	Accepted		WCSP
Euphorbia adenophylla Steud. [Unplaced]	Unresolved		WCSP
Euphorbia adenopoda Baill.	Accepted		WCSP
Euphorbia adenoptera Bertol.	Accepted		WCSP
Euphorbia adenoptera subsp. adenoptera	Accepted		WCSP
Euphorbia adenoptera subsp. canescens (Proctor) Oudejans	Accepted		WCSP
Euphorbia adenoptera subsp. gundlachii (Urb.) Oudejans	Synonym		WCSP
Euphorbia adenoptera var. indivisa (Engelm.) Boiss.	Synonym		WCSP
Euphorbia adenoptera subsp. pergamena (Small) Oudejans	Synonym		WCSP
Euphorbia adhaerens (Small) Jabl. [Invalid]	Synonym		WCSP
Euphorbia adiantoides Lam.	Accepted		WCSP
Euphorbia adinophylla Donn.Sm.	Synonym		WCSP
Euphorbia adjurana P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia adriana A.St.-Hil. ex Klotzsch & Garcke [Illegitimate]	Synonym		WCSP
Euphorbia aegyptiaca Boiss.	Synonym		WCSP
Euphorbia aegyptiaca var. indica Boiss.	Synonym		WCSP
Euphorbia aellenii Rech.f.	Synonym		WCSP
Euphorbia aequoris N.E.Br.	Accepted		WCSP
Euphorbia aeruginosa Schweick.	Accepted		WCSP
Euphorbia aethiopum Croizat	Synonym		WCSP
Euphorbia affinis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia affinis DC.	Synonym		WCSP
Euphorbia afzelii N.E.Br.	Synonym		WCSP
Euphorbia aggregata A.Berger	Accepted		WCSP
Euphorbia aggregata var. alternicolor (N.E.Br.) A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia agowensis Hochst. ex Boiss.	Accepted		WCSP
Euphorbia agowensis var. agowensis	Accepted		WCSP
Euphorbia agowensis var. pseudoholstii (Pax) P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia agraria M.Bieb.	Accepted		WCSP
Euphorbia agraria var. csatoi Simonk.	Synonym		WCSP
Euphorbia agraria var. subhastata (Vis. & Pancic) Gris	Synonym		WCSP
Euphorbia agraria var. thyrsiflora (Griseb.) Nyman	Synonym		WCSP
Euphorbia agrorum Willd. ex Ledeb. [Illegitimate]	Synonym		WCSP
Euphorbia akdaghensis Stapf	Synonym		WCSP
Euphorbia akenocarpa Roux & Blaise ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia akenocarpa Guss.	Accepted		WCSP
Euphorbia alaica (Prokh.) Prokh.	Accepted		WCSP
Euphorbia alainii Oudejans	Accepted		WCSP
Euphorbia alata Hook.	Accepted		WCSP
Euphorbia alatavica Boiss.	Accepted		WCSP
Euphorbia alatavica f. kaschgarica (Regel) Baikov	Synonym		WCSP
Euphorbia alatocaulis V.W.Steinm. & Felger	Accepted		WCSP
Euphorbia albanica N.E.Br.	Accepted		WCSP
Euphorbia albertensis N.E.Br.	Accepted		WCSP
Euphorbia albicaulis Rydb.	Synonym		WCSP
Euphorbia albiflora Taub.	Synonym		WCSP
Euphorbia albipollinifera L.C.Leach	Accepted		WCSP
Euphorbia albomarginata Torr. & A.Gray	Accepted		WCSP
Euphorbia albovillosa Pax	Synonym		WCSP
Euphorbia alcicornis Poiss. [Illegitimate]	Synonym		WCSP
Euphorbia alcicornis Baker	Accepted		WCSP
Euphorbia aleppica L.	Accepted		WCSP
Euphorbia alexandrina Delile	Synonym		WCSP
Euphorbia alfredii Rauh	Accepted		WCSP
Euphorbia algeriensis Boiss.	Synonym		WCSP
Euphorbia aliceae A.Nelson	Synonym		WCSP
Euphorbia allocarpa S.Carter	Accepted		WCSP
Euphorbia alluaudii Drake	Accepted		WCSP
Euphorbia alluaudii subsp. alluaudii	Accepted		WCSP
Euphorbia alluaudii subsp. oncoclada (Drake) F.Friedmann & Cremers	Accepted		WCSP
Euphorbia alpigena A.Kern.	Synonym		WCSP
Euphorbia alpina C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia alpina var. baikalensis Boiss.	Synonym		WCSP
Euphorbia alpina var. rupicola Baikov	Synonym		WCSP
Euphorbia alsiniflora Baill.	Accepted		WCSP
Euphorbia alsinifolia Boiss.	Accepted		WCSP
Euphorbia alsinoides Miq.	Accepted		WCSP
Euphorbia alta Norton	Accepted		WCSP
Euphorbia altaica C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia altaica C.A. Mey.	Unresolved		TRO
Euphorbia altaica var. pilosa Stschegl.	Synonym		WCSP
Euphorbia altaica var. sajanensis Boiss.	Synonym		WCSP
Euphorbia alternicola N.E. Br.	Synonym		TRO
Euphorbia alternicolor N.E.Br.	Synonym		WCSP
Euphorbia altissima Boiss.	Accepted		WCSP
Euphorbia altotibetica Paulsen	Accepted		WCSP
Euphorbia amandi Oudejans	Accepted		WCSP
Euphorbia amarifontana N.E.Br.	Accepted		WCSP
Euphorbia ambacensis N.E.Br.	Accepted		WCSP
Euphorbia ambarivatoensis Rauh & Bard.-Vauc.	Accepted		WCSP
Euphorbia ambatofinandranae Leandri	Synonym		WCSP
Euphorbia ambigua Waldst. & Kit. ex Willd.	Synonym		WCSP
Euphorbia × ambohipotsiensis Ursch & Leandri [Unplaced]	Unresolved		WCSP
Euphorbia ambovombensis Rauh & Razaf.	Accepted		WCSP
Euphorbia ambroseae L.C.Leach	Accepted		WCSP
Euphorbia ambukensis Stepanov	Synonym		WCSP
Euphorbia amicorum S.Carter	Accepted		WCSP
Euphorbia ammak Schweinf.	Accepted		WCSP
Euphorbia ammannioides Kunth	Synonym		WCSP
Euphorbia ammatotricha Boiss.	Accepted		WCSP
Euphorbia ammophila S.Carter & Dioli	Accepted		WCSP
Euphorbia amoena Klotzsch [Illegitimate]	Synonym		WCSP
Euphorbia amphimalaca Standl.	Synonym		WCSP
Euphorbia ampla Hook.f.	Synonym		WCSP
Euphorbia ampla var. tenuior Hook.f.	Synonym		WCSP
Euphorbia amplexicaulis Ledeb. [Illegitimate]	Synonym		WCSP
Euphorbia amplexicaulis Hook.f.	Accepted		WCSP
Euphorbia ampliphylla Pax	Accepted		WCSP
Euphorbia amygdaloides Lam. [Illegitimate]	Synonym		WCSP
Euphorbia amygdaloides L.	Accepted		WCSP
Euphorbia amygdaloides subsp. amygdaloides	Accepted		WCSP
Euphorbia amygdaloides subsp. arbuscula Meusel	Accepted		WCSP
Euphorbia amygdaloides var. biennis Maire	Synonym		WCSP
Euphorbia amygdaloides f. biennis (Maire) Oudejans	Synonym		WCSP
Euphorbia amygdaloides subsp. chaixiana (Timb.-Lagr.) Nyman	Synonym		WCSP
Euphorbia amygdaloides var. chaixiana (Timb.-Lagr.) Boiss.	Synonym		WCSP
Euphorbia amygdaloides subsp. heldreichii (Orph. ex Boiss.) Aldén	Synonym		WCSP
Euphorbia amygdaloides var. ligulata (Chaub.) Boiss.	Synonym		WCSP
Euphorbia amygdaloides f. ligulata (Chaub.) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia amygdaloides f. minor (Gaudin) Oudejans	Synonym		WCSP
Euphorbia amygdaloides var. oblongifolia K.Koch	Synonym		WCSP
Euphorbia amygdaloides f. purpurata (Coss. & Germ.) Oudejans	Synonym		WCSP
Euphorbia amygdaloides subsp. robbiae (Turrill) Stace	Accepted		WCSP
Euphorbia amygdaloides var. robbiae (Turrill) Radcl.-Sm.	Synonym		WCSP
Euphorbia amygdaloides var. semiperfoliata (Viv.) Fiori	Synonym		WCSP
Euphorbia amygdaloides subsp. semiperfoliata (Viv.) Radcl.-Sm.	Synonym		WCSP
Euphorbia anacampseroides Lam.	Synonym		WCSP
Euphorbia anacampseroides Descourt. [Illegitimate]	Synonym		WCSP
Euphorbia anacampseros Boiss.	Accepted		WCSP
Euphorbia anacampseros var. anacampseros	Accepted		WCSP
Euphorbia anacampseros var. minor Boiss.	Synonym		WCSP
Euphorbia anacantha Aiton	Synonym		WCSP
Euphorbia anachoreta Svent.	Accepted		WCSP
Euphorbia anagalloides Baker	Synonym		WCSP
Euphorbia analalavensis Leandri	Accepted		WCSP
Euphorbia analamerae Leandri	Accepted		WCSP
Euphorbia analavelonensis Rauh & Mangelsdorff	Accepted		WCSP
Euphorbia anceps Benth.	Synonym		WCSP
Euphorbia ancyrensis Azn. ex M.S.Khan	Synonym		WCSP
Euphorbia anderssonii Millsp.	Synonym		WCSP
Euphorbia andina Phil.	Synonym		WCSP
Euphorbia andongensis Hiern	Synonym		WCSP
Euphorbia andrachnoides Schrenk	Accepted		WCSP
Euphorbia × andrefandrovana Ursch & Leandri [Unplaced]	Unresolved		WCSP
Euphorbia andromedae Millsp.	Synonym		WCSP
Euphorbia androsaemifolia Schousb. ex Willd.	Synonym		WCSP
Euphorbia androsaemifolia C.Presl [Illegitimate]	Synonym		WCSP
Euphorbia androsaemifolia (Haw.) Steud. [Illegitimate]	Synonym		WCSP
Euphorbia androsaemifolia subsp. salicetorum (Jord.) Nyman	Synonym		WCSP
Euphorbia androsaemoides Dennst.	Synonym		WCSP
Euphorbia angolensis Pax	Synonym		WCSP
Euphorbia angrae N.E.Br.	Accepted		WCSP
Euphorbia angularis Klotzsch	Accepted		WCSP
Euphorbia angulata Jacq.	Accepted		WCSP
Euphorbia angulata subsp. deseglisei (Boreau ex Boiss.) Nyman	Synonym		WCSP
Euphorbia angulata var. expansa (Janka) Boiss.	Synonym		WCSP
Euphorbia angulata f. nemoralis Oudejans	Synonym		WCSP
Euphorbia angusta Engelm.	Accepted		WCSP
Euphorbia × angustata (Rochel) Simonk.	Accepted		WCSP
Euphorbia × angustata (Rochel) Borza	Synonym		TRO
Euphorbia angustiflora Pax	Accepted		WCSP
Euphorbia angustifolia Parodi [Illegitimate]	Synonym		WCSP
Euphorbia angustifolia Buch.-Ham. ex D.Don [Illegitimate]	Synonym		WCSP
Euphorbia angustifolia (Haw.) Steud.	Synonym		WCSP
Euphorbia angustifolia Glaz. [Unplaced]	Unresolved		WCSP
Euphorbia × angustifrons Borbás	Accepted		WCSP
Euphorbia anisopetala (Prokh.) Prokh.	Accepted		WCSP
Euphorbia ankaranae Leandri	Accepted		WCSP
Euphorbia ankarensis Boiteau	Accepted		WCSP
Euphorbia ankazobensis Rauh & Hofstätter	Accepted		WCSP
Euphorbia annamarieae Rauh	Accepted		WCSP
Euphorbia annulata Nutt. ex Sherff [Illegitimate]	Synonym		WCSP
Euphorbia anomala Salzm. ex Boiss.	Synonym		WCSP
Euphorbia anomala Pax [Illegitimate]	Synonym		WCSP
Euphorbia anoplia Stapf	Accepted		WCSP
Euphorbia antankara Leandri	Synonym		WCSP
Euphorbia anthonyi Brandegee	Accepted		WCSP
Euphorbia anthonyi var. clarionensis (Brandegee) I.M.Johnst.	Synonym		WCSP
Euphorbia anthula Lavrent. & Papan.	Accepted		WCSP
Euphorbia × anticaffra Lotsy & Goddijn	Synonym		WCSP
Euphorbia antilibanotica Mouterde	Accepted		WCSP
Euphorbia antiquorum L.	Accepted		WCSP
Euphorbia antiquorum var. polygona Wight	Synonym		WCSP
Euphorbia antisyphilitica Zucc.	Accepted		WCSP
Euphorbia antisyphilitica var. luxurians Miranda	Synonym		WCSP
Euphorbia antonii Oudejans	Accepted		WCSP
Euphorbia antso Denis	Accepted		WCSP
Euphorbia antunesii Pax	Synonym		WCSP
Euphorbia anychioides Boiss.	Accepted		WCSP
Euphorbia apatzingana McVaugh	Accepted		WCSP
Euphorbia aphylla Brouss. ex Willd.	Accepted		WCSP
Euphorbia apicata L.C.Wheeler	Accepted		WCSP
Euphorbia apiculata Andersson	Synonym		WCSP
Euphorbia apios L.	Accepted		WCSP
Euphorbia apios var. lamprocarpa Boiss.	Synonym		WCSP
Euphorbia apocynifolia Small	Synonym		WCSP
Euphorbia apocynoides Klotzsch	Accepted		WCSP
Euphorbia appariciana Rizzini	Accepted		WCSP
Euphorbia appendiculata P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia applanata Thulin & Al-Gifri	Accepted		WCSP
Euphorbia aprica Baill.	Accepted		WCSP
Euphorbia apurimacensis Croizat	Accepted		WCSP
Euphorbia arabica Hochst. & Steud. ex T.Anderson	Accepted		WCSP
Euphorbia arabica var. brevifolia Boiss.	Synonym		WCSP
Euphorbia arabica var. latappendiculata Pax	Synonym		WCSP
Euphorbia arabicoides N.E.Br.	Accepted		WCSP
Euphorbia aragonensis Loscos & J.Pardo	Synonym		WCSP
Euphorbia aragonensis subsp. bolosii (Molero & Rovira) Rivas Mart.	Synonym		WCSP
Euphorbia arahaka Poiss.	Accepted		WCSP
Euphorbia ararica Jord.	Synonym		WCSP
Euphorbia araucana Phil.	Accepted		WCSP
Euphorbia arborescens Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia arborescens Salm-Dyck [Illegitimate]	Synonym		WCSP
Euphorbia arborescens E.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia arborescens Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia arborescens C.Sm. [Illegitimate]	Synonym		WCSP
Euphorbia arbuscula Balf.f.	Accepted		WCSP
Euphorbia arceuthobioides Boiss.	Accepted		WCSP
Euphorbia ardonensis Galushko	Accepted		WCSP
Euphorbia arenaria Kunth	Accepted		WCSP
Euphorbia arenaria Engelm. & A.Gray [Illegitimate]	Synonym		WCSP
Euphorbia arenaria Willd. ex Ledeb. [Illegitimate]	Synonym		WCSP
Euphorbia arenaria Nutt. [Illegitimate]	Synonym		WCSP
Euphorbia arenaria var. quitensis Boiss.	Synonym		WCSP
Euphorbia arenarioides Gagnep.	Accepted		WCSP
Euphorbia arenicola Parish	Synonym		WCSP
Euphorbia argillicola Dinter	Accepted		WCSP
Euphorbia argillosa Chodat & Hassl.	Accepted		WCSP
Euphorbia arguta Banks & Sol.	Accepted		WCSP
Euphorbia arguta var. dasycarpa Plitmann	Synonym		WCSP
Euphorbia arida N.E.Br.	Accepted		WCSP
Euphorbia ariensis Kunth	Accepted		WCSP
Euphorbia ariensis var. villicaulis Fernald	Synonym		WCSP
Euphorbia arillata Edgew.	Synonym		WCSP
Euphorbia aristata Schmalh.	Accepted		WCSP
Euphorbia arizonica Engelm.	Accepted		WCSP
Euphorbia arkansana Engelm. & A.Gray	Synonym		WCSP
Euphorbia arkansana var. atrosemina Norton	Synonym		WCSP
Euphorbia arkansana var. coloradensis Norton	Synonym		WCSP
Euphorbia arkansana var. missouriensis Norton	Synonym		WCSP
Euphorbia armata Thunb.	Synonym		WCSP
Euphorbia armena Prokh.	Synonym		WCSP
Euphorbia armena Boiss. [Invalid]	Synonym		WCSP
Euphorbia armeniaca Boiss. [Invalid]	Synonym		WCSP
Euphorbia armourii Millsp.	Accepted		WCSP
Euphorbia armstrongiana Boiss.	Accepted		WCSP
Euphorbia arnottiana Endl.	Accepted		WCSP
Euphorbia arnottiana var. integrifolia (Hillebr.) H.St.John	Synonym		WCSP
Euphorbia arrecta N.E.Br.	Accepted		WCSP
Euphorbia arsenariensis (Batt.) Batt. & Trab.	Synonym		WCSP
Euphorbia artaudiana DC.	Synonym		WCSP
Euphorbia arteagae W.R.Buck & Huft	Accepted		WCSP
Euphorbia articulata Andersson [Illegitimate]	Synonym		WCSP
Euphorbia articulata Dennst. [Illegitimate]	Synonym		WCSP
Euphorbia articulata Burm.	Accepted		WCSP
Euphorbia articulata var. bindloensis Stewart	Synonym		WCSP
Euphorbia articulata var. lordatii Stehlé & M.Stehlé	Synonym		WCSP
Euphorbia artifolia N.E.Br.	Accepted		WCSP
Euphorbia artvinensis Bornm. & Woronow	Synonym		WCSP
Euphorbia arundelana Bartlett	Synonym		WCSP
Euphorbia arvalis Boiss. & Heldr.	Accepted		WCSP
Euphorbia arvalis subsp. arvalis	Accepted		WCSP
Euphorbia arvalis var. longistyla Litard. & Maire	Synonym		WCSP
Euphorbia arvalis subsp. longistyla (Litard. & Maire) Molero, Rovira & Vicens	Accepted		WCSP
Euphorbia arvensis Kit.	Synonym		WCSP
Euphorbia arvensis Schleich. ex Steud. [Illegitimate]	Synonym		WCSP
Euphorbia ascendens Willd. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia asclepiadea Milne-Redh.	Accepted		WCSP
Euphorbia aserbajdzhanica Bordz.	Accepted		WCSP
Euphorbia aspera M.Bieb.	Synonym		WCSP
Euphorbia aspera var. oligadenia Boiss.	Synonym		WCSP
Euphorbia aspera var. serrata Boiss.	Synonym		WCSP
Euphorbia aspericaulis Pax	Accepted		WCSP
Euphorbia asperifolia Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia asthenacantha S.Carter	Accepted		WCSP
Euphorbia astrachanica C.A.Mey. ex Claus	Synonym		WCSP
Euphorbia astroites Fisch. & C.A.Mey.	Synonym		WCSP
Euphorbia astroites var. heterappendiculata Millsp.	Synonym		WCSP
Euphorbia astrophora J.G.Marx	Accepted		WCSP
Euphorbia astyla Engelm. ex Boiss.	Accepted		WCSP
Euphorbia atlantica Coss. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia atlantica Pers.	Synonym		WCSP
Euphorbia atlantica var. leiocarpa Boiss.	Synonym		WCSP
Euphorbia atlantica var. major Boiss.	Synonym		WCSP
Euphorbia atlantica var. villosa Faure & Maire	Synonym		WCSP
Euphorbia atlantis Maire	Synonym		WCSP
Euphorbia atlantis var. leiocarpa (Boiss.) Oudejans	Synonym		WCSP
Euphorbia atlantis var. major (Boiss.) Oudejans	Synonym		WCSP
Euphorbia atoto G.Forst.	Accepted		WCSP
Euphorbia atoto var. imbricata Boiss.	Synonym		WCSP
Euphorbia atoto var. minor Boiss.	Synonym		WCSP
Euphorbia atrispina N.E.Br.	Accepted		WCSP
Euphorbia atrispina var. viridis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia atrocarmesina L.C.Leach	Accepted		WCSP
Euphorbia atrococca A.Heller	Accepted		WCSP
Euphorbia atrococca var. kilaueana Sherff	Synonym		WCSP
Euphorbia atrococca var. kokeeana Sherff	Synonym		WCSP
Euphorbia atroflora S.Carter	Accepted		WCSP
Euphorbia atropurpurea Brouss. ex Willd.	Accepted		WCSP
Euphorbia atropurpurea f. atropurpurea	Accepted		WCSP
Euphorbia atropurpurea var. modesta Svent	Synonym		WCSP
Euphorbia atrorubens Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia atrosanguinea Poepp. ex Klotzsch [Invalid]	Synonym		WCSP
Euphorbia atrox F.K.Horw. ex S.Carter	Accepted		WCSP
Euphorbia attastoma Rizzini	Accepted		WCSP
Euphorbia aubryana Baill.	Synonym		WCSP
Euphorbia aucheri Boiss.	Accepted		WCSP
Euphorbia aulacosperma Boiss.	Accepted		WCSP
Euphorbia aulacosperma var. fossulata (Boiss. & Gaill.) Boiss.	Synonym		WCSP
Euphorbia aureocincta Croizat	Synonym		WCSP
Euphorbia aureoviridiflora (Rauh) Rauh	Accepted		WCSP
Euphorbia auricularia Boiss.	Synonym		WCSP
Euphorbia australis Boiss.	Accepted		WCSP
Euphorbia australis var. canescens Domin	Synonym		WCSP
Euphorbia australis var. erythrantha (F.Muell.) Benth.	Synonym		WCSP
Euphorbia australis var. glabrescens Boiss.	Synonym		WCSP
Euphorbia australis var. glaucescens Boiss.	Synonym		WCSP
Euphorbia australis var. potentillina Baill.	Synonym		WCSP
Euphorbia australis var. semiglabra Domin	Synonym		WCSP
Euphorbia australis var. subtomentosa Domin	Synonym		WCSP
Euphorbia austriaca A.Kern.	Accepted		WCSP
Euphorbia austriaca subsp. sojakii Chrtek & Krísa	Synonym		WCSP
Euphorbia austriaca subsp. tauricola (Prokh.) Chrtek & Krísa	Synonym		WCSP
Euphorbia austrina (Small) Jabl. [Invalid]	Synonym		WCSP
Euphorbia austroanatolica Hub.-Mor. & M.S.Khan	Accepted		WCSP
Euphorbia austrooccidentalis Thell.	Synonym		WCSP
Euphorbia avasmontana Dinter	Accepted		WCSP
Euphorbia avasmontana var. sagittaria (Marloth) A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia avenia Thibaut ex Pers.	Synonym		WCSP
Euphorbia awashensis M.G.Gilbert	Accepted		WCSP
Euphorbia azorica Welw. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia azorica Hochst.	Accepted		WCSP
Euphorbia babensis Kit.	Synonym		WCSP
Euphorbia bachmannii Pax	Synonym		WCSP
Euphorbia backeri Pax & K.Hoffm.	Synonym		WCSP
Euphorbia baetica Boiss.	Accepted		WCSP
Euphorbia baga A.Chev.	Accepted		WCSP
Euphorbia bagyrensis Stepanov	Unresolved		WCSP (in review)
Euphorbia bahiensis (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia bailloni Boiss.	Synonym		TRO
Euphorbia baillonii Boiss. ex Baill.	Synonym		WCSP
Euphorbia baioensis S.Carter	Accepted		WCSP
Euphorbia bakeriana Baill.	Synonym		WCSP
Euphorbia balakrishnanii Binojk. & Gopalan	Accepted		WCSP
Euphorbia balbisii Boiss.	Accepted		WCSP
Euphorbia balearica Poir. ex Klotzsch & Garcke [Illegitimate]	Synonym		WCSP
Euphorbia baleensis M.G.Gilbert	Accepted		WCSP
Euphorbia × balfourii Sennen	Accepted		WCSP
Euphorbia baliola N.E.Br.	Accepted		WCSP
Euphorbia balkhanica Tarassov	Synonym		WCSP
Euphorbia ballyana Rauh	Accepted		WCSP
Euphorbia ballyi S.Carter	Accepted		WCSP
Euphorbia balsamea Welw. ex Hiern	Synonym		WCSP
Euphorbia balsamifera Aiton	Accepted		WCSP
Euphorbia balsamifera subsp. adenensis (Deflers) P.R.O.Bally	Accepted		WCSP
Euphorbia balsamifera subsp. adenensis (Deflers) Govaerts	Synonym		TRO
Euphorbia balsamifera subsp. balsamifera	Accepted		WCSP
Euphorbia balsamifera subsp. sepium (N.E.Br.) Maire	Synonym		WCSP
Euphorbia banae Rauh	Accepted		WCSP
Euphorbia bancana Miq.	Synonym		WCSP
Euphorbia baradii S.Carter	Accepted		WCSP
Euphorbia barbellata Engelm.	Synonym		WCSP
Euphorbia barbellata Hurus. [Illegitimate]	Synonym		WCSP
Euphorbia barbellata f. denudata (Hurus.) Kitag.	Synonym		WCSP
Euphorbia barbellata var. imaii (Hurus.) Kitag.	Synonym		WCSP
Euphorbia barbicarina (Millsp.) Standl.	Synonym		WCSP
Euphorbia barbicollis P.R.O.Bally	Accepted		WCSP
Euphorbia bariensis S.Carter	Accepted		WCSP
Euphorbia barkeri Urb. & Ekman	Synonym		WCSP
Euphorbia barnardii A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia barnesii (Millsp.) Oudejans	Synonym		WCSP
Euphorbia barnhartii Croizat	Synonym		WCSP
Euphorbia barrelieri Savi	Accepted		WCSP
Euphorbia barrelieri subsp. barrelieri	Accepted		WCSP
Euphorbia barrelieri subsp. carnica (Boiss.) Kuzmanov	Synonym		WCSP
Euphorbia barrelieri var. carnica (Boiss.) Fiori	Synonym		WCSP
Euphorbia barrelieri subsp. hercegovina (Beck) Kuzmanov	Accepted		WCSP
Euphorbia barrelieri var. thessala (Formánek) K.Malý	Synonym		WCSP
Euphorbia barrelieri subsp. thessala (Formánek) Bornm.	Accepted		WCSP
Euphorbia barteri N.E.Br.	Synonym		WCSP
Euphorbia bartolomei Greene	Accepted		WCSP
Euphorbia basarabica Prodán	Accepted		WCSP
Euphorbia basargica Prodán	Accepted		WCSP
Euphorbia baselicis Ten.	Synonym		WCSP
Euphorbia baselicis var. rupestris Friraldszky ex Boiss.	Synonym		WCSP
Euphorbia baselicis subsp. thessala Formánek	Synonym		WCSP
Euphorbia basutica Marloth	Synonym		WCSP
Euphorbia batabanensis Urb.	Synonym		WCSP
Euphorbia baueri Engelm. ex Boiss.	Accepted		WCSP
Euphorbia baumii Pax	Accepted		WCSP
Euphorbia baxanica Galushko	Accepted		WCSP
Euphorbia bayeri L.C.Leach	Accepted		WCSP
Euphorbia baylissii L.C.Leach	Accepted		WCSP
Euphorbia × bazargica Prodán	Accepted		WCSP
Euphorbia beamanii M.C.Johnst.	Accepted		WCSP
Euphorbia beaumieriana Hook.f. & Coss.	Synonym		WCSP
Euphorbia begoniifolia Lehm.	Synonym		WCSP
Euphorbia beharensis Leandri	Accepted		WCSP
Euphorbia beharensis var. guillemetii (Ursch & Leandri) Rauh	Accepted		WCSP
Euphorbia beillei A.Chev.	Accepted		WCSP
Euphorbia bejariensis DC.	Synonym		WCSP
Euphorbia belgradica Forssk.	Accepted		WCSP
Euphorbia bellica Hiern	Synonym		WCSP
Euphorbia bemarahaensis Rauh & Mangelsdorff	Accepted		WCSP
Euphorbia benedicta Greene	Synonym		WCSP
Euphorbia benguelensis Pax	Synonym		WCSP
Euphorbia benoistii Leandri	Accepted		WCSP
Euphorbia benthamii Hiern	Accepted		WCSP
Euphorbia berevoensis Lawant & Buddens.	Accepted		WCSP
Euphorbia bergeri N.E.Br.	Accepted		WCSP
Euphorbia bergeriana Dinter	Synonym		WCSP
Euphorbia bergii A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia bermudiana Millsp.	Synonym		WCSP
Euphorbia berorohae Rauh & Itfstotter	Accepted		WCSP
Euphorbia berotica N.E.Br.	Accepted		WCSP
Euphorbia bertemariae Bisseret & Dioli	Accepted		WCSP
Euphorbia berteroana Balb. ex Spreng.	Accepted		WCSP
Euphorbia berthelotii Bolle ex Boiss.	Accepted		WCSP
Euphorbia berythea Boiss. & Blanche	Accepted		WCSP
Euphorbia bessarabica Prodán [Unplaced]	Unresolved		WCSP
Euphorbia bessarabica Klokov [Illegitimate]	Synonym		WCSP
Euphorbia besseri (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia betacea Baill.	Accepted		WCSP
Euphorbia betulicortex M.G.Gilbert	Accepted		WCSP
Euphorbia bevilaniensis Croizat	Synonym		WCSP
Euphorbia biaculeata Denis	Accepted		WCSP
Euphorbia bialata Link	Synonym		WCSP
Euphorbia bianoensis (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia bicapitata Brandegee	Synonym		WCSP
Euphorbia bicephala Bertol.	Synonym		WCSP
Euphorbia bicolor Engelm. & A.Gray	Accepted		WCSP
Euphorbia bicolor var. concolor Engelm. & A.Gray	Synonym		WCSP
Euphorbia bicompacta Bruyns	Accepted		WCSP
Euphorbia bicompacta var. rubra (S.Carter) Bruyns	Accepted		WCSP
Euphorbia biconvexa Domin	Accepted		WCSP
Euphorbia bifida Thwaites [Illegitimate]	Synonym		WCSP
Euphorbia bifida Hook. & Arn.	Accepted		WCSP
Euphorbia biformis S.Watson	Synonym		WCSP
Euphorbia bifurcata Engelm.	Accepted		WCSP
Euphorbia biglandulosa Boiss. [Invalid]	Synonym		WCSP
Euphorbia biglandulosa Willd. [Illegitimate]	Synonym		WCSP
Euphorbia biglandulosa Desf.	Synonym		WCSP
Euphorbia biglandulosa var. mauretanica Maire	Synonym		WCSP
Euphorbia biharamulensis S.Carter	Accepted		WCSP
Euphorbia bilobata Engelm.	Accepted		WCSP
Euphorbia bilocularis N.E.Br.	Synonym		WCSP
Euphorbia bimensis Miq.	Synonym		WCSP
Euphorbia biramensis Urb.	Synonym		WCSP
Euphorbia biselegans Bruyns	Accepted		WCSP
Euphorbia bisellenbeckii Bruyns	Accepted		WCSP
Euphorbia biserrata Millsp.	Synonym		WCSP
Euphorbia bisglobosa Bruyns	Accepted		WCSP
Euphorbia bisulcata J.T.Howell	Synonym		WCSP
Euphorbia bitataensis M.G.Gilbert	Accepted		WCSP
Euphorbia biumbellata Poir.	Accepted		WCSP
Euphorbia biumbellata Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia biuncialis McVaugh	Synonym		WCSP
Euphorbia bivonae Steud.	Accepted		WCSP
Euphorbia bivonae subsp. bivonae	Accepted		WCSP
Euphorbia bivonae var. mauritii Sennen	Synonym		WCSP
Euphorbia bivonae var. melitensis (Parl.) Fiori	Synonym		WCSP
Euphorbia bivonae var. montana Lojac.	Synonym		WCSP
Euphorbia bivonae var. papillaris Boiss.	Synonym		WCSP
Euphorbia bivonae var. tangerina Pau	Synonym		WCSP
Euphorbia bivonae subsp. tunetana Murb.	Accepted		WCSP
Euphorbia blanchetii Miq. ex Boiss.	Synonym		WCSP
Euphorbia blatteri Oudejans	Accepted		WCSP
Euphorbia blepharophylla C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia blepharostipula Millsp. ex N.E.Rose	Synonym		WCSP
Euphorbia blodgettii Engelm. ex Hitchc.	Accepted		WCSP
Euphorbia bodenghieniae (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia bodinieri H.Lév. & Vaniot	Synonym		WCSP
Euphorbia boerhaviifolia (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia boerhavioides Rusby	Accepted		WCSP
Euphorbia boinensis Denis ex Humbert & Leandri	Accepted		WCSP
Euphorbia boissieri Baill.	Accepted		WCSP
Euphorbia boissieriana (Woronow) Prokh.	Accepted		WCSP
Euphorbia boiteaui Leandri	Accepted		WCSP
Euphorbia boivinii Boiss.	Accepted		WCSP
Euphorbia bojeri Hook.	Synonym		WCSP
Euphorbia bojeri Kl.	Synonym		TRO
Euphorbia bojeri var. mucronulata Ram. Goyena	Synonym		TRO
Euphorbia boliviana Rusby	Synonym		WCSP
Euphorbia bolosii (Molero & Rovira) Molero & Rovira	Synonym		WCSP
Euphorbia bolusii N.E.Br.	Accepted		WCSP
Euphorbia bombaiensis Santapau	Synonym		WCSP
Euphorbia bombensis Jacq.	Accepted		WCSP
Euphorbia bonae Mutel	Synonym		WCSP
Euphorbia bongensis Kotschy & Peyr. ex Boiss.	Accepted		WCSP
Euphorbia bongolavensis Rauh	Accepted		WCSP
Euphorbia bonifaciensis Req. ex Gren. & Godr. [Invalid]	Synonym		WCSP
Euphorbia bonplandii Sweet	Accepted		WCSP
Euphorbia boophthona C.A.Gardner	Accepted		WCSP
Euphorbia borbonica Boiss.	Accepted		WCSP
Euphorbia borealis Baikov	Accepted		WCSP
Euphorbia borenensis M.G.Gilbert	Accepted		WCSP
Euphorbia borodinii Sambuk	Synonym		WCSP
Euphorbia borszczowii Prokh.	Synonym		WCSP
Euphorbia bosseri Leandri	Accepted		WCSP
Euphorbia × bothae Lotsy & Goddijn	Accepted		WCSP
Euphorbia × bothae var. anticaffra (Lotsy & Goddijn) G.D.Rowley	Synonym		WCSP
Euphorbia bothriosperma Boiss. & Kotschy	Synonym		WCSP
Euphorbia botryoides Noronha [Illegitimate]	Synonym		WCSP
Euphorbia bottae Boiss.	Accepted		WCSP
Euphorbia bougheyi L.C.Leach	Accepted		WCSP
Euphorbia bouleyi S.Moore	Accepted		WCSP
Euphorbia bounophila Boiss.	Synonym		WCSP
Euphorbia bounophila var. aucheri (Boiss.) Boiss.	Synonym		WCSP
Euphorbia bourgeana J.Gay ex Boiss.	Accepted		WCSP
Euphorbia bracei Millsp.	Synonym		WCSP
Euphorbia brachiata Jan [Invalid]	Synonym		WCSP
Euphorbia brachiata (Klotzsch & Garcke) E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia brachycera Engelm.	Accepted		WCSP
Euphorbia brachycera f. dichotoma (Daniels) Oudejans	Synonym		WCSP
Euphorbia brachycera var. greggii (Engelm. ex Boiss.) M.C.Johnst.	Synonym		WCSP
Euphorbia brachycera var. robusta (Engelm.) Dorn	Synonym		WCSP
Euphorbia brachyphylla Denis	Accepted		WCSP
Euphorbia bracteata Jacq.	Accepted		WCSP
Euphorbia bracteolaris Boiss.	Accepted		WCSP
Euphorbia brakdamensis N.E.Br.	Accepted		WCSP
Euphorbia brandegeei Millsp.	Accepted		WCSP
Euphorbia brasiliensis Lam.	Synonym		WCSP
Euphorbia brasiliensis f. angustior Chodat & Hassl.	Synonym		WCSP
Euphorbia brasiliensis var. blanchetii (Miq. ex Boiss.) Boiss.	Synonym		WCSP
Euphorbia brasiliensis var. hyssopifolia (L.) Boiss.	Synonym		WCSP
Euphorbia brasiliensis f. latior Chodat & Hassl.	Synonym		WCSP
Euphorbia brasiliensis var. lorentzii (Müll.Arg.) Griseb.	Synonym		WCSP
Euphorbia brasiliensis f. major Chodat & Hassl.	Synonym		WCSP
Euphorbia brasiliensis var. paraguayensis Chodat	Synonym		WCSP
Euphorbia brasiliensis var. pruinosa (Chodat) Chodat & Hassl.	Synonym		WCSP
Euphorbia brasiliensis f. pruinosa Chodat	Synonym		WCSP
Euphorbia brasiliensis var. pulchella Boiss.	Synonym		WCSP
Euphorbia brasiliensis f. subsessilis Chodat & Hassl.	Synonym		WCSP
Euphorbia brasiliensis var. uniflora Chodat & Hassl.	Synonym		WCSP
Euphorbia brassii P.I.Forst.	Accepted		WCSP
Euphorbia braunsii N.E.Br.	Accepted		WCSP
Euphorbia bravoana Svent.	Accepted		WCSP
Euphorbia breonii Nois. [Illegitimate]	Synonym		WCSP
Euphorbia breviarticulata Pax	Accepted		WCSP
Euphorbia brevicornu Pax	Accepted		WCSP
Euphorbia brevirama N.E.Br.	Accepted		WCSP
Euphorbia brevis N.E.Br.	Accepted		WCSP
Euphorbia brevitorta P.R.O.Bally	Accepted		WCSP
Euphorbia bridgesii (Klotzsch & Garcke) Bertol. ex Boiss.	Synonym		WCSP
Euphorbia briquetii Emb. & Maire	Accepted		WCSP
Euphorbia brittingeri Opiz ex Samp.	Synonym		WCSP
Euphorbia brittingeri subsp. flavicoma (DC.) Ladero	Synonym		WCSP
Euphorbia brittonii Millsp.	Accepted		WCSP
Euphorbia brochonii Deysson	Synonym		WCSP
Euphorbia broteroi Daveau	Synonym		WCSP
Euphorbia broussonetii Willd. ex Link	Synonym		WCSP
Euphorbia brownii Baill.	Accepted		WCSP
Euphorbia brunellii Chiov.	Accepted		WCSP
Euphorbia bruntii (Proctor) Oudejans	Accepted		WCSP
Euphorbia bruynsii L.C.Leach	Accepted		WCSP
Euphorbia bryophylla Donn.Sm.	Synonym		WCSP
Euphorbia bubalina Boiss.	Accepted		WCSP
Euphorbia buchananii Pax	Synonym		WCSP
Euphorbia buchtormensis C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia buchtormensis var. alatavica (Boiss.) Regel	Synonym		WCSP
Euphorbia × budensis T.Simon	Accepted		WCSP
Euphorbia buhsei Boiss.	Accepted		WCSP
Euphorbia buhsei var. lasiostemon Boiss.	Synonym		WCSP
Euphorbia bulbispina Rauh & Razaf.	Accepted		WCSP
Euphorbia bulleyana Diels	Synonym		WCSP
Euphorbia bungei Boiss.	Accepted		WCSP
Euphorbia bupleurifolia E.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia bupleurifolia Jacq.	Accepted		WCSP
Euphorbia bupleuroides Diels [Illegitimate]	Synonym		WCSP
Euphorbia bupleuroides Willd. ex Ledeb. [Illegitimate]	Synonym		WCSP
Euphorbia bupleuroides Desf.	Accepted		WCSP
Euphorbia bupleuroides Willd. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia bupleuroides subsp. luteola (Kralik) Maire	Synonym		WCSP
Euphorbia burchellii Müll.Arg.	Accepted		WCSP
Euphorbia burgeri M.G.Gilbert	Accepted		WCSP
Euphorbia burkartii Bacigalupo	Accepted		WCSP
Euphorbia burmanica Hook.f.	Accepted		WCSP
Euphorbia burmanni (Klotzsch & Garcke) E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia burmanni var. karrooensis Boiss.	Synonym		WCSP
Euphorbia burmanniana J.Gay	Synonym		WCSP
Euphorbia buruana Pax	Accepted		WCSP
Euphorbia buschiana Grossh.	Accepted		WCSP
Euphorbia bussei Pax	Accepted		WCSP
Euphorbia bussei var. bussei	Accepted		WCSP
Euphorbia bussei var. kibwezensis (N.E.Br.) S.Carter	Accepted		WCSP
Euphorbia buxifolia Lam.	Synonym		WCSP
Euphorbia buxifolia var. flexuosa (Kunth) Boiss.	Synonym		WCSP
Euphorbia buxifolia f. florida Millsp.	Synonym		WCSP
Euphorbia buxifolia var. ramosissima Millsp.	Synonym		WCSP
Euphorbia buxifolia f. reclinata Millsp.	Synonym		WCSP
Euphorbia buxifolia f. seminuda Millsp.	Synonym		WCSP
Euphorbia buxoides Radcl.-Sm.	Accepted		WCSP
Euphorbia bwambensis S.Carter	Accepted		WCSP
Euphorbia cactus Ehrenb. ex Boiss.	Accepted		WCSP
Euphorbia cactus var. tortirama Rauh & Lavranos	Synonym		WCSP
Euphorbia cadrilateri Prodán	Synonym		WCSP
Euphorbia caducifolia Haines	Accepted		WCSP
Euphorbia caecorum Mart. ex Boiss.	Synonym		WCSP
Euphorbia caeladenia Boiss.	Accepted		WCSP
Euphorbia caerulescens Haw.	Accepted		WCSP
Euphorbia caesaraugustana Willk. & Lange [Illegitimate]	Synonym		WCSP
Euphorbia caesia Kar. & Kir.	Accepted		WCSP
Euphorbia caesia var. pilosa Ledeb.	Synonym		WCSP
Euphorbia caespitosa Ten. [Illegitimate]	Synonym		WCSP
Euphorbia caespitosa Lam.	Accepted		WCSP
Euphorbia caespitosa subsp. ventanicola Croizat	Synonym		WCSP
Euphorbia caespitosa var. ventanicola (Croizat) Subils	Synonym		WCSP
Euphorbia caiogala Ehrh.	Synonym		WCSP
Euphorbia calabarica Burkill	Synonym		WCSP
Euphorbia calabrica Huter, Porta & Rigo	Synonym		WCSP
Euphorbia calamiformis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia calcarata (Schltdl.) V.W.Steinm.	Accepted		WCSP
Euphorbia calcarea Coss. & Durieu ex Coss. [Illegitimate]	Synonym		WCSP
Euphorbia calcicola Fernald	Accepted		WCSP
Euphorbia calderensis Phil.	Synonym		WCSP
Euphorbia calderoniae V.W.Steinm.	Accepted		WCSP
Euphorbia calendulifolia Delile	Synonym		WCSP
Euphorbia californica Benth.	Accepted		WCSP
Euphorbia californica var. hindsiana (Benth.) Wiggins	Synonym		WCSP
Euphorbia calliadena Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia callitrichoides Kunth	Synonym		WCSP
Euphorbia callitrichoides Schauer [Illegitimate]	Synonym		WCSP
Euphorbia caloderma S.Carter	Accepted		WCSP
Euphorbia calonesiaca Croizat	Synonym		WCSP
Euphorbia calva N.E.Br.	Synonym		WCSP
Euphorbia calyciflora Sessé & Moc.	Synonym		WCSP
Euphorbia calycina N.E.Br.	Synonym		WCSP
Euphorbia calyculata Kunth	Accepted		WCSP
Euphorbia calyptrata Coss. & Kralik	Accepted		WCSP
Euphorbia calyptrata var. involucrata Batt.	Synonym		WCSP
Euphorbia camagueyensis (Millsp.) Urb.	Accepted		WCSP
Euphorbia cameronii N.E.Br.	Accepted		WCSP
Euphorbia campestris Schltdl. & Cham. [Illegitimate]	Synonym		WCSP
Euphorbia campestris S.Geuns	Synonym		WCSP
Euphorbia campestris var. esuliformis (Nees & Schauer) Boiss.	Synonym		WCSP
Euphorbia campestris var. foliosa Millsp.	Synonym		WCSP
Euphorbia campestris var. seemannii (Klotzsch) Boiss.	Synonym		WCSP
Euphorbia campestris var. subpuberula Greenm.	Synonym		WCSP
Euphorbia campestris var. subpuberula	Synonym		TRO
Euphorbia canaliculata Lam.	Synonym		WCSP
Euphorbia canaliculata Lodd. [Illegitimate]	Synonym		WCSP
Euphorbia canaliculata Pers. [Illegitimate]	Synonym		WCSP
Euphorbia canariensis L.	Accepted		WCSP
Euphorbia canariensis var. spiralis Bolle ex Boiss.	Synonym		WCSP
Euphorbia canariensis f. viridis G.Kunkel	Synonym		WCSP
Euphorbia candelabrum Trémaux ex Kotschy	Accepted		WCSP
Euphorbia candelabrum Welw. ex Hiern [Illegitimate]	Synonym		WCSP
Euphorbia candelabrum var. bilocularis (N.E.Br.) S.Carter	Accepted		WCSP
Euphorbia candelabrum var. candelabrum	Accepted		WCSP
Euphorbia canescens L.	Synonym		WCSP
Euphorbia cannellii L.C.Leach	Accepted		WCSP
Euphorbia cantabrica Rouy [Illegitimate]	Synonym		WCSP
Euphorbia canuti Parl.	Accepted		WCSP
Euphorbia cap-saintemariensis Rauh	Synonym		WCSP
Euphorbia cap-saintemariensis var. tulearensis Rauh	Synonym		WCSP
Euphorbia capansa Ducke	Accepted		WCSP
Euphorbia capazii Caball.	Synonym		WCSP
Euphorbia caperata McVaugh	Accepted		WCSP
Euphorbia caperonioides R.A.Dyer & P.G.Mey.	Accepted		WCSP
Euphorbia capillaris Gagnep.	Accepted		WCSP
Euphorbia capitata Lam.	Synonym		WCSP
Euphorbia capitellata Engelm.	Accepted		WCSP
Euphorbia capitellata var. laxiflora S.Watson	Synonym		WCSP
Euphorbia capitosa N.E. Br.	Synonym		TRO
Euphorbia capitulata Rchb.	Accepted		WCSP
Euphorbia capmanambatoensis Rauh	Accepted		WCSP
Euphorbia captiosa N.E.Br.	Synonym		WCSP
Euphorbia capuronii Ursch & Leandri	Accepted		WCSP
Euphorbia capuronii Leandri [Illegitimate]	Synonym		WCSP
Euphorbia caput-aureum Denis	Accepted		WCSP
Euphorbia caput-medusae L.	Accepted		WCSP
Euphorbia caput-medusae var. geminata Aiton	Synonym		WCSP
Euphorbia caput-medusae var. major Aiton	Synonym		WCSP
Euphorbia caracasana (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia cardiophylla Boiss. & Heldr.	Synonym		WCSP
Euphorbia careyi F.Muell.	Synonym		WCSP
Euphorbia carinata Donn	Synonym		WCSP
Euphorbia carinifolia N.E.Br.	Accepted		WCSP
Euphorbia carinthiaca Traunf. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia carinulata P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia carissoides F.M.Bailey	Accepted		WCSP
Euphorbia carmenensis Rose	Synonym		WCSP
Euphorbia carniolica Jacq.	Accepted		WCSP
Euphorbia carniolica DC. [Illegitimate]	Synonym		WCSP
Euphorbia carniolica Scop. ex Brot. [Illegitimate]	Synonym		WCSP
Euphorbia carniolica Lapeyr. [Illegitimate]	Synonym		WCSP
Euphorbia carniolica var. ambigua (Waldst. & Kit. ex Willd.) Nyman	Synonym		WCSP
Euphorbia carniolica f. cordatobracteata Prodán	Synonym		WCSP
Euphorbia carniolica f. elliptica Prodán	Synonym		WCSP
Euphorbia carniolica subsp. expansa (Janka) Nyman	Synonym		WCSP
Euphorbia carniolica var. expansa (Janka) Porcius	Synonym		WCSP
Euphorbia carniolica f. expansa (Janka) Prodán	Synonym		WCSP
Euphorbia carnosa Paulsen	Synonym		WCSP
Euphorbia carpasus Ehrenb. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia carpatica Wol.	Accepted		WCSP
Euphorbia cartaginiensis Porta & Rigo	Synonym		WCSP
Euphorbia carteriana P.R.O.Bally	Accepted		WCSP
Euphorbia carullae Sennen	Synonym		WCSP
Euphorbia carunculata Waterf.	Accepted		WCSP
Euphorbia carunculifera L.C.Leach	Accepted		WCSP
Euphorbia carunculifera subsp. subfastigiata L.C.Leach	Synonym		WCSP
Euphorbia cashmeriana Royle	Accepted		WCSP
Euphorbia cassia Boiss.	Accepted		WCSP
Euphorbia cassia subsp. rigoi (Boiss. ex Freyn) Holmboe	Accepted		WCSP
Euphorbia cassioides C.Presl	Synonym		WCSP
Euphorbia cassythoides Boiss.	Accepted		WCSP
Euphorbia castillonii Lavranos	Synonym		WCSP
Euphorbia catamarcensis (Croizat) Subils	Accepted		WCSP
Euphorbia cataractarum S.Carter	Accepted		WCSP
Euphorbia catenata (S.Carter) Bruyns	Accepted		WCSP
Euphorbia caterviflora N.E.Br.	Accepted		WCSP
Euphorbia cattimandoo Elliot ex Wight	Accepted		WCSP
Euphorbia caucasica Dubovik	Synonym		WCSP
Euphorbia caudata Boiss. & Hausskn.	Synonym		WCSP
Euphorbia caudiculosa Boiss.	Accepted		WCSP
Euphorbia cavaleriei H.Lév. & Vaniot	Synonym		WCSP
Euphorbia cayensis Millsp.	Accepted		WCSP
Euphorbia cebrina Hochst. ex Klotzsch & Garcke [Illegitimate]	Synonym		WCSP
Euphorbia cechica Opiz [Illegitimate]	Synonym		WCSP
Euphorbia cedrorum Rauh & Hebding	Accepted		WCSP
Euphorbia celastroides Boiss.	Accepted		WCSP
Euphorbia celastroides var. amplectens Sherff	Synonym		WCSP
Euphorbia celastroides var. arenisaxosa H.St.John	Synonym		WCSP
Euphorbia celastroides var. halawana Sherff	Synonym		WCSP
Euphorbia celastroides var. hanapepensis Sherff	Synonym		WCSP
Euphorbia celastroides var. haupuana Sherff	Synonym		WCSP
Euphorbia celastroides var. humbertii Sherff	Synonym		WCSP
Euphorbia celastroides var. ingrata O.Deg. & Sherff	Synonym		WCSP
Euphorbia celastroides var. kaenana Sherff	Synonym		WCSP
Euphorbia celastroides var. kealiana Sherff	Synonym		WCSP
Euphorbia celastroides var. kohalana Sherff	Synonym		WCSP
Euphorbia celastroides var. laehiensis O.Deg., I.Deg. & Sherff	Synonym		WCSP
Euphorbia celastroides var. limahuliensis H.St.John	Synonym		WCSP
Euphorbia celastroides var. lorifolia (A.Gray ex H.Mann) Sherff	Synonym		WCSP
Euphorbia celastroides var. mauiensis Sherff	Synonym		WCSP
Euphorbia celastroides var. moomomiana Sherff	Synonym		WCSP
Euphorbia celastroides var. nelsonii H.St.John	Synonym		WCSP
Euphorbia celastroides var. nematopoda Sherff	Synonym		WCSP
Euphorbia celastroides var. niuensis Sherff	Synonym		WCSP
Euphorbia celastroides var. niuensis O. Deg. & I. Deg.	Synonym		TRO
Euphorbia celastroides var. odonatoides O.Deg. & Sherff	Synonym		WCSP
Euphorbia celastroides var. pseudoniuensis O.Deg. & Sherff	Synonym		WCSP
Euphorbia celastroides var. saxicola O.Deg. & Sherff	Synonym		WCSP
Euphorbia celastroides var. stokesii (C.N.Forbes) Sherff	Synonym		WCSP
Euphorbia celastroides var. tomentella (Boiss.) Oudejans	Synonym		WCSP
Euphorbia celastroides var. waikoluensis Sherff	Synonym		WCSP
Euphorbia celata R.A.Dyer	Accepted		WCSP
Euphorbia celerieri (Emb.) Emb. ex Vindt	Accepted		WCSP
Euphorbia centralis B.G.Thomson	Accepted		WCSP
Euphorbia centunculoides Kunth	Accepted		WCSP
Euphorbia ceratocarpa Ten.	Accepted		WCSP
Euphorbia cerebrina Hochst. ex Boiss.	Synonym		WCSP
Euphorbia cereiformis L.	Accepted		WCSP
Euphorbia cereiformis var. echinata Salm-Dyck ex Boiss.	Synonym		WCSP
Euphorbia cereiformis var. submamillaris A.Berger	Synonym		WCSP
Euphorbia cerifera Alcocer	Synonym		WCSP
Euphorbia cerinthifolia Fisch. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia cernua Coss. & Durieu ex Boiss.	Synonym		WCSP
Euphorbia ceroderma I.M.Johnst.	Accepted		WCSP
Euphorbia cervicornis Boiss.	Synonym		WCSP
Euphorbia cervicornu Baill.	Accepted		WCSP
Euphorbia cestrifolia Kunth	Accepted		WCSP
Euphorbia chaborasia Gomb.	Accepted		WCSP
Euphorbia chaculana Donn.Sm.	Accepted		WCSP
Euphorbia chaetocalyx (Boiss.) Tidestr.	Accepted		WCSP
Euphorbia chaetocalyx var. triligulata (L.C.Wheeler) M.C.Johnst.	Synonym		WCSP
Euphorbia chaixiana Timb.-Lagr.	Synonym		WCSP
Euphorbia chalicophila Weath.	Synonym		WCSP
Euphorbia chamacula Weath.	Unresolved		TRO
Euphorbia chamaebuxus Bernard ex Gren. & Godr.	Synonym		WCSP
Euphorbia chamaecaula Weath.	Accepted		WCSP
Euphorbia chamaeclada Ule	Accepted		WCSP
Euphorbia chamaecormos Chiov.	Synonym		WCSP
Euphorbia chamaepeploides Lotsy	Synonym		WCSP
Euphorbia chamaepeplus Boiss. & Gaill.	Accepted		WCSP
Euphorbia chamaepeplus var. angustifolia Danin	Synonym		WCSP
Euphorbia chamaepeplus var. sinaica Boiss.	Synonym		WCSP
Euphorbia chamaerrhodos Boiss.	Accepted		WCSP
Euphorbia chamaerrhodos var. hirsuta Chodat & Hassl.	Synonym		WCSP
Euphorbia chamaesula Boiss.	Accepted		WCSP
Euphorbia chamaesula var. subdentata (Engelm.) Norton	Synonym		WCSP
Euphorbia chamaesyce L.	Accepted		WCSP
Euphorbia chamaesyce var. canescens (L.) Boiss.	Synonym		WCSP
Euphorbia chamaesyce subsp. canescens Prokh.	Synonym		TRO
Euphorbia chamaesyce var. glabra C.A.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia chamaesyce var. glabra Roep.	Synonym		WCSP
Euphorbia chamaesyce var. glabriuscula Lange	Synonym		WCSP
Euphorbia chamaesyce var. massiliensis (DC.) Thell.	Synonym		WCSP
Euphorbia chamaesyce var. pilosa C.A.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia chamaesyce var. pilosa Roep.	Synonym		WCSP
Euphorbia chamaesycoides B.Nord.	Accepted		WCSP
Euphorbia chamberlinii I.M.Johnst.	Synonym		WCSP
Euphorbia chamissonis (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia chankoana Vorosch.	Synonym		WCSP
Euphorbia chapmanii Oudejans	Accepted		WCSP
Euphorbia characias L.	Accepted		WCSP
Euphorbia characias subsp. characias	Accepted		WCSP
Euphorbia characias var. eriocarpa (Bertol.) Nyman	Synonym		WCSP
Euphorbia characias var. lusitanica O.Bolòs	Synonym		WCSP
Euphorbia characias var. melapetala (Gasp. ex Guss.) Fiori	Synonym		WCSP
Euphorbia characias var. veneta (Willd.) Fiori	Synonym		WCSP
Euphorbia characias subsp. veneta (Willd.) Litard.	Synonym		WCSP
Euphorbia characias subsp. wulfenii (Hoppe ex W.D.J.Koch) Radcl.-Sm.	Accepted		WCSP
Euphorbia charleswilsoniana V.Vlk	Accepted		WCSP
Euphorbia chasmophila Rech.f. & Aellen	Synonym		WCSP
Euphorbia cheiradenia Boiss. & Hohen.	Accepted		WCSP
Euphorbia cheirolepioides Rech.f.	Synonym		WCSP
Euphorbia cheirolepis Fisch. & C.A.Mey. ex Karelin	Accepted		WCSP
Euphorbia cheirolepis var. heterophylla Boiss.	Synonym		WCSP
Euphorbia chenopodiifolia Boiss.	Accepted		WCSP
Euphorbia chersina N.E.Br.	Accepted		WCSP
Euphorbia chersonesa Huft	Accepted		WCSP
Euphorbia chesneyi (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia chevalieri (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia chiapensis Brandegee	Synonym		WCSP
Euphorbia chilensis Gay	Synonym		WCSP
Euphorbia chimaera Lipsky	Accepted		WCSP
Euphorbia chiogenes (Small) Oudejans	Accepted		WCSP
Euphorbia chiogenoides Rusby	Synonym		WCSP
Euphorbia chiribensis V.W.Steinm. & Felger	Accepted		WCSP
Euphorbia chrysochaeta W.Fitzg.	Synonym		WCSP
Euphorbia chrysocoma H.Lév. & Vaniot	Synonym		WCSP
Euphorbia chrysocoma var. glaucophylla H.Lév. & Vaniot	Synonym		WCSP
Euphorbia chrysophylla (Klotzsch & Garcke) Klotzsch ex Boiss.	Synonym		WCSP
Euphorbia cibdela N.E.Br.	Accepted		WCSP
Euphorbia ciliata Spreng. [Unplaced]	Unresolved		WCSP
Euphorbia cilicica Boiss.	Synonym		WCSP
Euphorbia ciliolata Pax	Synonym		WCSP
Euphorbia cinerascens Engelm.	Accepted		WCSP
Euphorbia cinerascens var. appendiculata Engelm.	Synonym		WCSP
Euphorbia cinerea W.Fitzg.	Synonym		WCSP
Euphorbia cirsioides Costantin & Gallaud	Synonym		WCSP
Euphorbia citrina S.Carter	Accepted		WCSP
Euphorbia clandestina Jacq.	Accepted		WCSP
Euphorbia clarae (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia clarionensis Brandegee	Synonym		WCSP
Euphorbia clarkeana Hook.f.	Accepted		WCSP
Euphorbia clarkeana var. erecta Hook.f.	Synonym		WCSP
Euphorbia classenii P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia clava Jacq.	Accepted		WCSP
Euphorbia clavarioides Boiss.	Accepted		WCSP
Euphorbia clavarioides var. truncata A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia clavata Salisb.	Synonym		WCSP
Euphorbia clavidigitata Gage	Accepted		WCSP
Euphorbia clavigera Lacaita [Illegitimate]	Synonym		WCSP
Euphorbia clavigera N.E.Br.	Accepted		WCSP
Euphorbia claytonioides Pax	Accepted		WCSP
Euphorbia clementei Boiss.	Accepted		WCSP
Euphorbia clementei var. angustifolia Lange	Synonym		WCSP
Euphorbia clementei subsp. clementei	Accepted		WCSP
Euphorbia clementei subsp. faurei (Maire) Vicens, Molero & C.Blanché	Accepted		WCSP
Euphorbia clementei f. hozmariensis Pau	Synonym		WCSP
Euphorbia clementei f. maroccana (Maire) Vindt	Synonym		WCSP
Euphorbia clementei var. maroccana Maire	Synonym		WCSP
Euphorbia clementei var. puberula (Emb.) Maire	Synonym		WCSP
Euphorbia clementei var. villifolia Maire	Synonym		WCSP
Euphorbia clementei subsp. villosa (Faure & Maire) Vicens, Molero & C.Blanché	Accepted		WCSP
Euphorbia clementii Domin [Illegitimate]	Synonym		WCSP
Euphorbia cleopatra Baill.	Synonym		WCSP
Euphorbia clivicola R.A.Dyer	Accepted		WCSP
Euphorbia clusiifolia Hook. & Arn.	Accepted		WCSP
Euphorbia clusiifolia var. grandiflora Hillebr.	Synonym		WCSP
Euphorbia clusiifolia var. grandifolia Hillebr.	Synonym		TRO
Euphorbia clutioides (G.Forst.) C.A.Gardner [Invalid]	Synonym		WCSP
Euphorbia coalcomanensis (Croizat) V.W.Steinm.	Accepted		WCSP
Euphorbia coarctata Baker ex Luteyn	Unresolved		TRO
Euphorbia coccinea Willd. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia coccinea B.Heyne ex Roth	Accepted		WCSP
Euphorbia coccorum Mart.	Unresolved		TRO
Euphorbia coderiana DC.	Synonym		WCSP
Euphorbia coerulans Pax	Accepted		WCSP
Euphorbia cofradiana Brandegee	Synonym		WCSP
Euphorbia coghlanii F.M.Bailey	Accepted		WCSP
Euphorbia cognata (Klotzsch) Boiss.	Synonym		WCSP
Euphorbia colchica (Litv.) Geltman	Synonym		WCSP
Euphorbia colimae Rose	Synonym		WCSP
Euphorbia collenetteae Al-Zahrani & El-Karemy	Accepted		WCSP
Euphorbia colletioides Benth.	Accepted		WCSP
Euphorbia colliculina A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia colligata V.W.Steinm.	Accepted		WCSP
Euphorbia collina Brandegee [Illegitimate]	Synonym		WCSP
Euphorbia collina Phil.	Synonym		WCSP
Euphorbia collina Willd. ex Ledeb. [Invalid]	Synonym		WCSP
Euphorbia collina var. andina (Phil.) Subils	Synonym		WCSP
Euphorbia collina var. chrysophylla (Klotzsch & Garcke) Subils	Synonym		WCSP
Euphorbia collina var. glaucescens (Chodat & Wilczek) Subils	Synonym		WCSP
Euphorbia collina var. minor (Hicken) Subils	Synonym		WCSP
Euphorbia collina var. nahuelhuapina (Croizat) Subils	Synonym		WCSP
Euphorbia collina var. patagonica (Hieron.) Subils	Synonym		WCSP
Euphorbia collina var. spathulata (Chodat & Wilczek) Subils	Synonym		WCSP
Euphorbia colorata Engelm.	Accepted		WCSP
Euphorbia colubrina P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia columnaris P.R.O.Bally	Accepted		WCSP
Euphorbia comans W.Fitzg.	Accepted		WCSP
Euphorbia commelinii DC.	Synonym		WCSP
Euphorbia commersonii Baill.	Accepted		WCSP
Euphorbia commersonii M. Denis	Synonym		TRO
Euphorbia commiphoroides Dinter	Synonym		WCSP
Euphorbia commutata Engelm. ex A.Gray	Accepted		WCSP
Euphorbia commutata var. erecta Norton	Synonym		WCSP
Euphorbia comonduana Millsp.	Synonym		WCSP
Euphorbia comosa Vell.	Accepted		WCSP
Euphorbia complanata Warb.	Accepted		WCSP
Euphorbia complexa R.A.Dyer	Accepted		WCSP
Euphorbia compressa Boiss.	Accepted		WCSP
Euphorbia concanensis Janarth. & S.R.Yadav	Accepted		WCSP
Euphorbia conceptionis Rupr. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia condensata Fisch. ex M.Bieb.	Synonym		WCSP
Euphorbia condylocarpa M.Bieb.	Accepted		WCSP
Euphorbia conferta (Small) B.E.Sm.	Accepted		WCSP
Euphorbia conferta (Small) Jabl.	Synonym		TRO
Euphorbia conferta (Small) Oudejans	Synonym		TRO
Euphorbia confertiflora Volkens	Synonym		WCSP
Euphorbia confinalis R.A.Dyer	Accepted		WCSP
Euphorbia confluens Nel	Accepted		WCSP
Euphorbia conformis N.E.Br.	Synonym		WCSP
Euphorbia confusa Blume ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia congenera Blume	Synonym		WCSP
Euphorbia congesta Willd.	Synonym		WCSP
Euphorbia congestiflora L.C.Leach	Accepted		WCSP
Euphorbia conifera Steph. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia coniosperma Boiss. & Buhse	Accepted		WCSP
Euphorbia conjuncta Millsp.	Synonym		WCSP
Euphorbia connata Boiss.	Accepted		WCSP
Euphorbia consanguinea Klotzsch [Illegitimate]	Synonym		WCSP
Euphorbia consanguinea Schrenk	Accepted		WCSP
Euphorbia consanguinea Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia consanguinea Engelm.	Synonym		TRO
Euphorbia consobrina N.E.Br.	Synonym		WCSP
Euphorbia consoquitlae Brandegee	Accepted		WCSP
Euphorbia conspicua N.E.Br.	Accepted		WCSP
Euphorbia contorta L.C.Leach	Accepted		WCSP
Euphorbia controversa N.E.Br.	Synonym		WCSP
Euphorbia convolvuloides Hochst. ex Benth.	Accepted		WCSP
Euphorbia conzattii V.W.Steinm.	Accepted		WCSP
Euphorbia cooperi N.E.Br. ex A.Berger	Accepted		WCSP
Euphorbia cooperi var. ussanguensis (N.E.Br.) L.C.Leach	Accepted		WCSP
Euphorbia copiapina Phil.	Accepted		WCSP
Euphorbia corallifera M.E.Jones	Synonym		WCSP
Euphorbia corallioides L.	Accepted		WCSP
Euphorbia corallioides var. denudata Boiss.	Synonym		WCSP
Euphorbia corallothamnus Dinter	Synonym		WCSP
Euphorbia cordata Schrank	Synonym		WCSP
Euphorbia cordata Meyen [Illegitimate]	Synonym		WCSP
Euphorbia cordata Larrañaga [Illegitimate]	Synonym		WCSP
Euphorbia cordatella Oudejans	Accepted		WCSP
Euphorbia cordellata Haw.	Accepted		WCSP
Euphorbia cordifolia C.A.Mey. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia cordifolia Elliott	Accepted		WCSP
Euphorbia coriacea K.Koch	Synonym		WCSP
Euphorbia coriariifolia Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia corifolia Lam.	Synonym		WCSP
Euphorbia cornastra (Dressler) Radcl.-Sm.	Accepted		WCSP
Euphorbia corniculata R.A.Dyer	Accepted		WCSP
Euphorbia cornigera Boiss.	Accepted		WCSP
Euphorbia cornigera var. cognata (Klotzsch) Binojk. & N.P.Balakr.	Synonym		WCSP
Euphorbia × cornubiensis Radcl.-Sm.	Synonym		WCSP
Euphorbia cornuta Pers.	Synonym		WCSP
Euphorbia corollata L.	Accepted		WCSP
Euphorbia corollata var. angustifolia Elliott	Synonym		WCSP
Euphorbia corollata var. apocynifolia (Small) Millsp.	Synonym		WCSP
Euphorbia corollata var. glauca Millsp.	Synonym		WCSP
Euphorbia corollata var. grandiflora Boiss.	Synonym		WCSP
Euphorbia corollata var. hirsuta Macnab	Synonym		WCSP
Euphorbia corollata var. joorii Norton	Synonym		WCSP
Euphorbia corollata var. mollis Millsp.	Synonym		WCSP
Euphorbia corollata var. paniculata Boiss.	Synonym		WCSP
Euphorbia corollata var. subpetiolata Boiss.	Synonym		WCSP
Euphorbia corollata var. viridiflora Farw.	Synonym		WCSP
Euphorbia corollata var. zinniiflora (Small) H.E.Ahles	Synonym		WCSP
Euphorbia coronata Thunb.	Synonym		WCSP
Euphorbia correllii M.C.Johnst.	Accepted		WCSP
Euphorbia correntina Parodi	Accepted		WCSP
Euphorbia corrigioloides Boiss.	Synonym		WCSP
Euphorbia corsica Req.	Accepted		WCSP
Euphorbia corymbosa N.E.Br.	Accepted		WCSP
Euphorbia corynoclada F.Muell.	Synonym		WCSP
Euphorbia coscinosperma Rchb. [Illegitimate]	Synonym		WCSP
Euphorbia cossoniana Boiss.	Accepted		WCSP
Euphorbia cossoniana var. maroccana Batt.	Synonym		WCSP
Euphorbia costata Schur	Synonym		WCSP
Euphorbia costeana (Rouy) P.Fourn.	Synonym		WCSP
Euphorbia cotinifolia L.	Accepted		WCSP
Euphorbia cotinifolia subsp. cotinoides (Miq.) Christenh.	Synonym		WCSP
Euphorbia cotinoides Miq.	Synonym		WCSP
Euphorbia cotinoides var. riedeliana (Klotzsch & Garcke) Müll.Arg.	Synonym		WCSP
Euphorbia cotinoides var. verrucosa Boiss.	Synonym		WCSP
Euphorbia cotylophora Spreng. [Unplaced]	Unresolved		WCSP
Euphorbia coudercii Gagnep.	Synonym		WCSP
Euphorbia coudercii f. glaberrima Gagnep.	Synonym		WCSP
Euphorbia cowellii (Millsp. ex Britton) Oudejans	Accepted		WCSP
Euphorbia cozumelensis Millsp.	Accepted		WCSP
Euphorbia cozumelensis var. pilosulca Millsp.	Synonym		WCSP
Euphorbia craspedia Boiss.	Accepted		WCSP
Euphorbia crassinodis Urb.	Accepted		WCSP
Euphorbia crassipes Marloth	Accepted		WCSP
Euphorbia creberrima McVaugh	Accepted		WCSP
Euphorbia crebrifolia S.Carter	Accepted		WCSP
Euphorbia cremersii Rauh & Razaf.	Accepted		WCSP
Euphorbia cremersii var. cremersii	Accepted		WCSP
Euphorbia cremersii var. rakatozafyi (Cremers) Rauh	Accepted		WCSP
Euphorbia cremersii f. viridifolia Rauh	Synonym		WCSP
Euphorbia crenata (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia crenulata Engelm.	Accepted		WCSP
Euphorbia crenulata var. franciscana Norton	Synonym		WCSP
Euphorbia crepitata L.C.Wheeler	Accepted		WCSP
Euphorbia crepitata var. longa M.C.Johnst.	Synonym		WCSP
Euphorbia crepuscula (L.C.Wheeler) Steinm. & Felger	Accepted		WCSP
Euphorbia cressoides M.C.Johnst.	Accepted		WCSP
Euphorbia cretica Mill.	Synonym		WCSP
Euphorbia cretophila Klokov	Synonym		WCSP
Euphorbia crispa (Haw.) Sweet	Accepted		WCSP
Euphorbia crispata Willd. ex Hornem.	Synonym		WCSP
Euphorbia crispata Lem. [Illegitimate]	Synonym		WCSP
Euphorbia cristata D.Dietr. [Illegitimate]	Synonym		WCSP
Euphorbia cristata B.Heyne ex Roth	Accepted		WCSP
Euphorbia cristata var. major Roth	Synonym		WCSP
Euphorbia croizatii (Hurus.) Kitag. [Illegitimate]	Synonym		WCSP
Euphorbia croizatii Leandri	Accepted		WCSP
Euphorbia crossadenia Pax & K.Hoffm.	Accepted		WCSP
Euphorbia crotonoides Boiss.	Accepted		WCSP
Euphorbia crotonoides subsp. crotonoides	Accepted		WCSP
Euphorbia cruentata Graham	Accepted		WCSP
Euphorbia cryptocaulis M.G.Gilbert	Accepted		WCSP
Euphorbia cryptospinosa P.R.O.Bally	Accepted		WCSP
Euphorbia × csatoi (Simonk.) Borza	Accepted		WCSP
Euphorbia cuatrecasasii Pau	Synonym		WCSP
Euphorbia cubensis Boiss.	Accepted		WCSP
Euphorbia cuchumatanensis Standl. & Steyerm.	Accepted		WCSP
Euphorbia cucumerina Willd.	Accepted		WCSP
Euphorbia culminicola Ant.Molina	Accepted		WCSP
Euphorbia cumbrae Boiss.	Accepted		WCSP
Euphorbia cumulata R.A.Dyer	Accepted		WCSP
Euphorbia cumulicola (Small) Oudejans	Accepted		WCSP
Euphorbia cuneata Vahl	Accepted		WCSP
Euphorbia cuneata var. carpasus Boiss.	Synonym		WCSP
Euphorbia cuneata subsp. cuneata	Accepted		WCSP
Euphorbia cuneata var. perrottetii (Jaub. & Spach) Boiss.	Synonym		WCSP
Euphorbia cuneata subsp. spinescens (Pax) S.Carter	Accepted		WCSP
Euphorbia cuneata var. spinescens (Pax) S.Carter	Synonym		WCSP
Euphorbia cuneifolia Guss.	Accepted		WCSP
Euphorbia cuneifolia Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia cuneiformis Hartmann [Unplaced]	Unresolved		WCSP
Euphorbia cuneneana L.C.Leach	Accepted		WCSP
Euphorbia cupanii A.Schultz ex Gren. & Godr. [Illegitimate]	Synonym		WCSP
Euphorbia cupanii Guss. ex Bertol.	Synonym		WCSP
Euphorbia cupanii var. spartioides (Jacq.) Boiss.	Synonym		WCSP
Euphorbia cuphosperma (Engelm.) Boiss.	Synonym		WCSP
Euphorbia cupricola (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia cuprispina S.Carter	Accepted		WCSP
Euphorbia cupularis Boiss.	Accepted		WCSP
Euphorbia curocana L.C.Leach	Accepted		WCSP
Euphorbia currorii N.E.Br.	Synonym		WCSP
Euphorbia curtifolia Chaub.	Synonym		WCSP
Euphorbia curtisii Engelm.	Accepted		WCSP
Euphorbia curtisii var. longipes Boiss.	Synonym		WCSP
Euphorbia curvirama R.A.Dyer	Accepted		WCSP
Euphorbia cuspidata Bernh. ex Krauss [Illegitimate]	Synonym		WCSP
Euphorbia cuspidata Bertol.	Accepted		WCSP
Euphorbia cussonioides P.R.O.Bally	Accepted		WCSP
Euphorbia cyanogala C.Wright ex Griseb.	Synonym		WCSP
Euphorbia cyanophylla H.Lév.	Synonym		WCSP
Euphorbia cyathophora Murray	Accepted		WCSP
Euphorbia cyathophora var. graminifolia Chapm.	Synonym		WCSP
Euphorbia cybirensis Boiss.	Synonym		WCSP
Euphorbia cybirensis var. acutifolia Boiss.	Synonym		WCSP
Euphorbia cybirensis var. dehiscens Boiss.	Synonym		WCSP
Euphorbia cybirensis var. longifolia Boiss.	Synonym		WCSP
Euphorbia cybirensis var. microcarpa Boiss.	Synonym		WCSP
Euphorbia cybirensis var. valerianifolia (Lam.) Nyman	Synonym		WCSP
Euphorbia cylindrica Marloth ex A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia cylindrifolia Marn.-Lap. & Rauh	Accepted		WCSP
Euphorbia cymbifera (Schltdl.) V.W.Steinm.	Accepted		WCSP
Euphorbia cymbiformis Rusby	Accepted		WCSP
Euphorbia cymosa Poir.	Accepted		WCSP
Euphorbia cynanchoides Drake	Synonym		WCSP
Euphorbia cyparissias L.	Accepted		WCSP
Euphorbia cyparissias var. esuloides DC.	Synonym		WCSP
Euphorbia cyparissias var. glabriuscula C.A.Mey.	Synonym		WCSP
Euphorbia cyparissias var. pubescens C.A.Mey.	Synonym		WCSP
Euphorbia cyparissioides Pax	Accepted		WCSP
Euphorbia cyparissioides var. minor N.E.Br.	Synonym		WCSP
Euphorbia cypria Boiss.	Synonym		WCSP
Euphorbia cyprianii Maire & Sennen	Synonym		WCSP
Euphorbia cyri V.W.Steinm.	Accepted		WCSP
Euphorbia cyrtophylla (Prokh.) Prokh.	Accepted		WCSP
Euphorbia czerepanovii Geltman	Accepted		WCSP
Euphorbia dahurica Peschkova	Accepted		WCSP
Euphorbia dalettiensis M.G.Gilbert	Accepted		WCSP
Euphorbia dallachyana Baill.	Accepted		WCSP
Euphorbia dalmatica Vis.	Synonym		WCSP
Euphorbia dalmatica f. isophylla K.Malý	Synonym		WCSP
Euphorbia damarana L.C.Leach	Accepted		WCSP
Euphorbia damascena Boiss.	Synonym		WCSP
Euphorbia damasoi Oudejans	Accepted		WCSP
Euphorbia daphnoides Balf.f.	Synonym		WCSP
Euphorbia daphnoides Baill. [Illegitimate]	Synonym		WCSP
Euphorbia darbandensis N.E.Br.	Accepted		WCSP
Euphorbia darlingtonii A.Gray	Synonym		WCSP
Euphorbia darlingtonii var. glabra Boiss.	Synonym		WCSP
Euphorbia dasyacantha S.Carter	Accepted		WCSP
Euphorbia dasycarpa Coss. ex Batt. & Trab.	Synonym		WCSP
Euphorbia dasyclada Dusén	Synonym		WCSP
Euphorbia dauana S.Carter	Accepted		WCSP
Euphorbia davidii Subils	Accepted		WCSP
Euphorbia daviesii E.A.Bruce	Accepted		WCSP
Euphorbia davisii M.S.Khan	Accepted		WCSP
Euphorbia davyi N.E.Br.	Accepted		WCSP
Euphorbia dawei N.E.Br.	Accepted		WCSP
Euphorbia debilispina L.C.Leach	Accepted		WCSP
Euphorbia decariana Croizat	Synonym		WCSP
Euphorbia decaryi Guillaumin	Accepted		WCSP
Euphorbia decaryi var. cap-saintemariensis (Rauh) Cremers	Accepted		WCSP
Euphorbia decaryi var. cap-saintmariensis Rauh	Synonym		TRO
Euphorbia deccanensis V.S.Raju	Accepted		WCSP
Euphorbia deccanensis var. deccanensis	Accepted		WCSP
Euphorbia deccanensis var. nallamalayana (J.L.Ellis) V.S.Raju	Accepted		WCSP
Euphorbia decepta N.E.Br.	Accepted		WCSP
Euphorbia decidua P.R.O.Bally & L.C.Leach	Accepted		WCSP
Euphorbia decipiens Boiss. & Buhse	Accepted		WCSP
Euphorbia decliviticola L.C.Leach	Accepted		WCSP
Euphorbia decorsei Drake	Accepted		WCSP
Euphorbia decumbens (Forssk.) Willd.	Synonym		WCSP
Euphorbia decumbens W.	Synonym		TRO
Euphorbia decussata Salisb.	Synonym		WCSP
Euphorbia decussata E.Mey. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia dedzana L.C.Leach	Accepted		WCSP
Euphorbia deflexa Sibth. & Sm.	Accepted		WCSP
Euphorbia defoliata Urb.	Accepted		WCSP
Euphorbia degenerata D.Dietr.	Synonym		WCSP
Euphorbia degeneri Sherff	Accepted		WCSP
Euphorbia degeneri var. molokaiensis Sherff	Synonym		WCSP
Euphorbia deightonii Croizat	Accepted		WCSP
Euphorbia dejecta N.E.Br.	Synonym		WCSP
Euphorbia dekindtii Pax	Accepted		WCSP
Euphorbia delicatissima S.Carter	Accepted		WCSP
Euphorbia delicatula Boiss.	Accepted		WCSP
Euphorbia delortii Timb.-Lagr. ex Nyman	Synonym		TRO
Euphorbia delphinensis Ursch & Leandri	Accepted		WCSP
Euphorbia deltobracteata (Prokh.) Prokh.	Accepted		WCSP
Euphorbia deltoidea Engelm. ex Chapm.	Accepted		WCSP
Euphorbia deltoidea subsp. adhaerens (Small) Oudejans	Accepted		WCSP
Euphorbia deltoidea var. adhaerens (Small) Oudejans	Synonym		WCSP
Euphorbia deltoidea subsp. deltoidea	Accepted		WCSP
Euphorbia deltoidea subsp. pinetorum (Small) Oudejans	Accepted		WCSP
Euphorbia deltoidea var. serpyllum (Small) Oudejans	Synonym		WCSP
Euphorbia demissa L.C.Leach	Accepted		WCSP
Euphorbia demnatensis Coss. ex Batt. & Trab.	Synonym		WCSP
Euphorbia dendroides L.	Accepted		WCSP
Euphorbia denisiana Guillaumin	Accepted		WCSP
Euphorbia denisii Oudejans	Accepted		WCSP
Euphorbia densa Schott & Kotschy ex Tchich. [Illegitimate]	Synonym		WCSP
Euphorbia densa Schrenk	Accepted		WCSP
Euphorbia densiflora (Klotzsch) Klotzsch	Accepted		WCSP
Euphorbia densifolia K.Koch	Accepted		WCSP
Euphorbia densispina S.Carter	Accepted		WCSP
Euphorbia densiuscula Popov	Accepted		WCSP
Euphorbia densiusculiformis (Pazij) Botsch.	Accepted		WCSP
Euphorbia dentata Michx.	Accepted		WCSP
Euphorbia dentata var. cuphosperma Engelm.	Synonym		WCSP
Euphorbia dentata f. cuphosperma (Engelm.) Fernald	Synonym		WCSP
Euphorbia dentata var. gracillima Millsp.	Synonym		WCSP
Euphorbia dentata var. lancifolia Farw.	Synonym		WCSP
Euphorbia dentata var. lasiocarpa Boiss.	Synonym		WCSP
Euphorbia dentata var. linearis Engelm. ex Boiss.	Synonym		WCSP
Euphorbia dentata var. rigida Engelm.	Synonym		WCSP
Euphorbia denticulata Lam.	Accepted		WCSP
Euphorbia dentosa I.M.Johnst.	Accepted		WCSP
Euphorbia denudata Bertol.	Synonym		WCSP
Euphorbia depauperata Hochst. ex A.Rich.	Accepted		WCSP
Euphorbia depauperata subsp. aprica Pax	Synonym		WCSP
Euphorbia depauperata var. depauperata	Accepted		WCSP
Euphorbia depauperata var. pubiflora N.E.Br.	Synonym		WCSP
Euphorbia deppeana Boiss.	Accepted		WCSP
Euphorbia depressa Phil. ex Klotzsch & Garcke [Illegitimate]	Synonym		WCSP
Euphorbia depressa Torr. ex Spreng.	Synonym		WCSP
Euphorbia derickii V.W.Steinm.	Accepted		WCSP
Euphorbia descampsii (Pax) Bruyns	Accepted		WCSP
Euphorbia deseglisei Boreau ex Boiss.	Synonym		WCSP
Euphorbia deserticola F.Muell.	Synonym		WCSP
Euphorbia desertorum Weinm.	Synonym		WCSP
Euphorbia desfoliata (Menezes) Monod	Synonym		WCSP
Euphorbia desmondii Keay & Milne-Redh.	Accepted		WCSP
Euphorbia despoliata (Menezes) Monod	Synonym		TRO
Euphorbia dhofarensis S.Carter	Accepted		WCSP
Euphorbia diazlunana (J.Lomelí & Sahagun) V.W.Steinm.	Accepted		WCSP
Euphorbia dichotoma Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia dichotoma Forssk.	Synonym		WCSP
Euphorbia dichroa S.Carter	Accepted		WCSP
Euphorbia dictyosperma Fisch. & C.A.Mey.	Synonym		WCSP
Euphorbia dictyosperma var. leiococca Engelm.	Synonym		WCSP
Euphorbia dictyosperma var. mexicana Engelm.	Synonym		WCSP
Euphorbia dictyosperma var. multicaulis J.M.Coult.	Synonym		WCSP
Euphorbia didiereoides Denis ex Leandri	Accepted		WCSP
Euphorbia diffusa Jacq.	Synonym		WCSP
Euphorbia diffusa Dufour [Illegitimate]	Synonym		WCSP
Euphorbia diffusa Hook.f. [Illegitimate]	Synonym		WCSP
Euphorbia digestiva Rojas Acosta	Accepted		WCSP
Euphorbia digitata S.Watson	Synonym		WCSP
Euphorbia dijestiva Rojas	Unresolved		TRO
Euphorbia dilatata E.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia dilatata Torr. & A.Gray [Illegitimate]	Synonym		WCSP
Euphorbia dilatata Hochst. ex A.Rich.	Synonym		WCSP
Euphorbia dilobadena S.Carter	Accepted		WCSP
Euphorbia dilunguensis (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia diminuta S.Carter	Accepted		WCSP
Euphorbia dimorphocaulon P.H.Davis	Accepted		WCSP
Euphorbia dinteri A.Berger	Accepted		WCSP
Euphorbia dioeca Kunth	Accepted		WCSP
Euphorbia dioeca var. indivisa Engelm.	Synonym		WCSP
Euphorbia dioica Hieron. [Illegitimate]	Synonym		WCSP
Euphorbia dioica f. parvifolia Hieron.	Synonym		WCSP
Euphorbia dioscoreoides Boiss.	Accepted		WCSP
Euphorbia dioscoreoides subsp. dioscoreoides	Accepted		WCSP
Euphorbia disclusa N.E.Br.	Synonym		WCSP
Euphorbia discoidalis Chapm.	Accepted		WCSP
Euphorbia discoidea (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia discolor Ledeb.	Synonym		WCSP
Euphorbia discolor Bertol. [Illegitimate]	Synonym		WCSP
Euphorbia discolor (Klotzsch & Garcke) Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia discolor var. glabra Loschk. & Polozhij	Synonym		WCSP
Euphorbia discolor subsp. karoi (Freyn) Bassargin	Synonym		WCSP
Euphorbia discolor var. pilosa Loschk. & Polozhij	Synonym		WCSP
Euphorbia discrepans S.Carter	Accepted		WCSP
Euphorbia discreta N.E.Br.	Synonym		WCSP
Euphorbia dispersa L.C.Leach	Accepted		WCSP
Euphorbia dissimilis Cordem.	Synonym		WCSP
Euphorbia dissitispina L.C.Leach	Accepted		WCSP
Euphorbia distans W.Fitzg.	Accepted		WCSP
Euphorbia disticha Engelm. ex Boiss.	Accepted		WCSP
Euphorbia distincta Stschegl. [Illegitimate]	Synonym		WCSP
Euphorbia distincta Schur	Synonym		WCSP
Euphorbia distinctissima L.C.Leach	Accepted		WCSP
Euphorbia distinguenda Schur	Synonym		WCSP
Euphorbia diuretica Larrañaga	Accepted		WCSP
Euphorbia divaricata A.Cunn. ex Benth. [Illegitimate]	Synonym		WCSP
Euphorbia divaricata Jacq.	Synonym		WCSP
Euphorbia divergens Klotzsch [Illegitimate]	Synonym		WCSP
Euphorbia diversifolia Willd. ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia diversifolia Poir.	Synonym		WCSP
Euphorbia diversifolia Schrad. ex Steud. [Illegitimate]	Synonym		WCSP
Euphorbia djimilensis Boiss.	Accepted		WCSP
Euphorbia djurensis Schweinf. ex Pax	Synonym		WCSP
Euphorbia dobrogensis Prodán	Synonym		WCSP
Euphorbia dobrogensis f. latibracteata Prodán	Synonym		WCSP
Euphorbia × doinetiana Guillaumin [Unplaced]	Unresolved		WCSP
Euphorbia dolichoceras S.Carter	Accepted		WCSP
Euphorbia doloensis M.G.Gilbert	Accepted		WCSP
Euphorbia domingensis Spreng. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia dominii Rohlena	Synonym		WCSP
Euphorbia donii Oudejans	Accepted		WCSP
Euphorbia dorsiventralis Urb.	Synonym		WCSP
Euphorbia dracunculoides Lam.	Accepted		WCSP
Euphorbia dracunculoides var. africana Rikli & Schröt.	Synonym		WCSP
Euphorbia dracunculoides var. ballii Maire	Synonym		WCSP
Euphorbia dracunculoides subsp. dracunculoides	Accepted		WCSP
Euphorbia dracunculoides var. faurei Maire	Synonym		WCSP
Euphorbia dracunculoides var. flamandii (Batt.) Maire	Synonym		WCSP
Euphorbia dracunculoides subsp. flamandii (Batt.) Maire	Accepted		WCSP
Euphorbia dracunculoides subsp. glebulosa (Coss. & Durieu) Maire	Accepted		WCSP
Euphorbia dracunculoides subsp. hesperia Maire	Accepted		WCSP
Euphorbia dracunculoides subsp. inconspicua (Ball) Maire	Accepted		WCSP
Euphorbia dracunculoides subsp. intermedia (Maire) Maire	Accepted		WCSP
Euphorbia dracunculoides subsp. melillensis Maire	Synonym		WCSP
Euphorbia dracunculoides var. pseudoafricana Maire	Synonym		WCSP
Euphorbia dracunculoides var. taourirtensis (Batt. & Trab.) Batt.	Synonym		WCSP
Euphorbia dracunculoides subsp. volutiana Maire	Accepted		WCSP
Euphorbia drastica Siev. [Illegitimate]	Synonym		WCSP
Euphorbia dregeana E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia dressleri V.W.Steinm.	Accepted		WCSP
Euphorbia drummondii Boiss.	Accepted		WCSP
Euphorbia drummondii var. dallachyana Baill.	Synonym		WCSP
Euphorbia drummondii var. erythropeplis Baill.	Synonym		WCSP
Euphorbia drummondii var. rubescens Benth.	Synonym		WCSP
Euphorbia drupifera Thonn.	Accepted		WCSP
Euphorbia dubia Dierb.	Synonym		WCSP
Euphorbia dubovikii Oudejans	Accepted		WCSP
Euphorbia duckei (Croizat) Oudejans	Accepted		WCSP
Euphorbia duclouxii H.Lév. & Vaniot	Synonym		WCSP
Euphorbia duclouxii Radcl.-Sm.	Accepted		TRO
Euphorbia dugandiana Croizat	Accepted		WCSP
Euphorbia dulcis L.	Accepted		WCSP
Euphorbia dulcis var. alpigena (A.Kern.) Nyman	Synonym		WCSP
Euphorbia dulcis var. angulata (Jacq.) Fiori	Synonym		WCSP
Euphorbia dulcis subsp. angulata (Jacq.) Rouy	Synonym		WCSP
Euphorbia dulcis var. chloradenia Boiss.	Synonym		WCSP
Euphorbia dulcis var. incompta (Ces.) Nyman	Synonym		WCSP
Euphorbia dulcis subsp. incompta (Ces.) Nyman	Synonym		WCSP
Euphorbia dulcis var. lanuginosa (Lam.) Pers.	Synonym		WCSP
Euphorbia dulcis var. lanuginosa Peterm. [Illegitimate]	Synonym		WCSP
Euphorbia dulcis f. lanuginosa Oudejans	Synonym		WCSP
Euphorbia dulcis subsp. purpurata (Thuill.) Rothm.	Synonym		WCSP
Euphorbia dulcis var. viridiflora (Waldst. & Kit.) Nyman	Synonym		WCSP
Euphorbia dumalis S.Carter	Accepted		WCSP
Euphorbia dumeticola P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia dumetorum Coss. & Durieu ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia dumosa A.Rich.	Synonym		WCSP
Euphorbia dumosa Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia dunensis S.Carter	Accepted		WCSP
Euphorbia durandoi Chabert	Accepted		WCSP
Euphorbia duranii Ursch & Leandri	Accepted		WCSP
Euphorbia duriuscula Pax & K.Hoffm. ex Herzog	Accepted		WCSP
Euphorbia duseimata R.A.Dyer	Accepted		WCSP
Euphorbia dussii Krug & Urb. ex Duss	Accepted		WCSP
Euphorbia duvalii Lecoq & Lamotte	Accepted		WCSP
Euphorbia duvalii subsp. ruscinonensis (Boiss.) Kerguélen	Synonym		WCSP
Euphorbia dwyeri D.G.Burch	Accepted		WCSP
Euphorbia eanophylla Croizat	Accepted		WCSP
Euphorbia ebracteolata Hayata	Accepted		WCSP
Euphorbia ebracteolata var. anhweiensis (Hurus.) Oudejans	Synonym		WCSP
Euphorbia ebracteolata var. coreana Hurus.	Synonym		WCSP
Euphorbia ebracteolata f. magna Y.N.Lee	Synonym		WCSP
Euphorbia echinata Salm-Dyck [Illegitimate]	Synonym		WCSP
Euphorbia echinocarpa Sieber ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia echinulata (Stapf) Bruyns	Accepted		WCSP
Euphorbia echinus Hook.f. & Coss.	Synonym		WCSP
Euphorbia echinus var. chlorantha Maire	Synonym		WCSP
Euphorbia ecklonii (Klotzsch & Garcke) Baill.	Accepted		WCSP
Euphorbia ecorniculata Kitam.	Accepted		WCSP
Euphorbia edgeworthii Boiss.	Synonym		WCSP
Euphorbia edmondii Hochr.	Accepted		WCSP
Euphorbia eduardoi L.C.Leach	Accepted		WCSP
Euphorbia edulis Lour.	Synonym		WCSP
Euphorbia edulis Sessé & Moc. [Illegitimate]	Synonym		WCSP
Euphorbia eendornensis Dinter	Synonym		WCSP
Euphorbia effusa Ehrenb. ex Boiss.	Synonym		WCSP
Euphorbia eggersii Urb.	Accepted		WCSP
Euphorbia eglandulosa V.W.Steinm.	Accepted		WCSP
Euphorbia ehrenbergii Sweet [Illegitimate]	Synonym		WCSP
Euphorbia eichleri Müll.Arg.	Accepted		WCSP
Euphorbia eilensis S.Carter	Accepted		WCSP
Euphorbia einensis G.Will.	Accepted		WCSP
Euphorbia elastica Altam. & Rose [Illegitimate]	Synonym		WCSP
Euphorbia elastica Marloth [Illegitimate]	Synonym		WCSP
Euphorbia elastica Poiss. & Pax [Illegitimate]	Synonym		WCSP
Euphorbia elastica Jum.	Accepted		WCSP
Euphorbia elata Brandegee	Synonym		WCSP
Euphorbia eleanoriae (D.H.Lorence & W.L.Wagner) Govaerts	Accepted		WCSP
Euphorbia elegans Spreng.	Accepted		WCSP
Euphorbia elegans var. laxa Boiss.	Synonym		WCSP
Euphorbia elegantissima P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia ellenbeckii Pax	Accepted		WCSP
Euphorbia elliotii Leandri	Accepted		WCSP
Euphorbia ellipsifolia Gilli	Accepted		WCSP
Euphorbia elliptica Lam.	Synonym		WCSP
Euphorbia elliptica Thunb. [Illegitimate]	Synonym		WCSP
Euphorbia elodes Boiss.	Accepted		WCSP
Euphorbia elodes var. minor Boiss.	Synonym		WCSP
Euphorbia elongata Poir.	Synonym		WCSP
Euphorbia elquiensis Phil.	Accepted		WCSP
Euphorbia elwendica Stapf	Synonym		WCSP
Euphorbia elymaitica Bornm.	Accepted		WCSP
Euphorbia emarginata Lam.	Synonym		WCSP
Euphorbia emarginata Aiton [Illegitimate]	Synonym		WCSP
Euphorbia emarginata (Klotzsch & Garcke) Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia emetica Padilla	Accepted		WCSP
Euphorbia emirnensis Baker	Accepted		WCSP
Euphorbia emodi Hook.f.	Synonym		WCSP
Euphorbia enalla Brandegee	Synonym		WCSP
Euphorbia engelmannii Boiss.	Accepted		WCSP
Euphorbia engelmannii var. depressa Boiss.	Synonym		WCSP
Euphorbia engleri Pax	Accepted		WCSP
Euphorbia engleriana Dinter	Accepted		WCSP
Euphorbia enneagona Haw.	Synonym		WCSP
Euphorbia enopla Boiss.	Accepted		WCSP
Euphorbia enopla var. dentata Berg.	Synonym		TRO
Euphorbia enopla var. viridis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia enormis N.E.Br.	Accepted		WCSP
Euphorbia ensifolia Baker	Accepted		WCSP
Euphorbia enterophora Drake	Accepted		WCSP
Euphorbia ephedroides E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia ephedroides var. debilis L.C.Leach	Accepted		WCSP
Euphorbia ephedroides var. imminuta L.C.Leach & G.Will.	Accepted		WCSP
Euphorbia ephedromorpha Bartlett ex B.L.Rob. & Bartlett	Accepted		WCSP
Euphorbia epicyparissias (E.Mey. ex Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia epilobiifolia W.T.Wang	Synonym		WCSP
Euphorbia epiphylloides Kurz	Accepted		WCSP
Euphorbia epithymoides L.	Accepted		WCSP
Euphorbia epithymoides var. flavicoma (DC.) Fiori	Synonym		WCSP
Euphorbia epithymoides var. fragifera (Jan) Fiori	Synonym		WCSP
Euphorbia epithymoides var. gasparrinii (Boiss.) Fiori	Synonym		WCSP
Euphorbia epithymoides f. glabrescens Rostanski	Synonym		WCSP
Euphorbia epithymoides var. jacquinii Fiori	Synonym		WCSP
Euphorbia epithymoides subsp. lingulata (Heuff.) Nyman	Synonym		WCSP
Euphorbia epithymoides var. polychroma (A.Kern.) Nyman	Synonym		WCSP
Euphorbia epithymoides var. samnitica Fiori	Synonym		WCSP
Euphorbia epithymoides var. serratifolia Rohlena	Synonym		WCSP
Euphorbia epithymoides var. verrucosa Fiori	Synonym		WCSP
Euphorbia equisetiformis A.Stewart	Accepted		WCSP
Euphorbia eranthes R.A.Dyer & Milne-Redh.	Accepted		WCSP
Euphorbia eremica Jeps.	Synonym		WCSP
Euphorbia eremocarpus Pharm. ex Wehmer	Synonym		WCSP
Euphorbia eremophila A.Cunn. ex Hook.	Synonym		WCSP
Euphorbia eremophila var. dracunculina Baill.	Synonym		WCSP
Euphorbia eremophila var. filiformis Baill.	Synonym		WCSP
Euphorbia eremophila var. latifolia Boiss.	Synonym		WCSP
Euphorbia eremophila var. microdendron Baill.	Synonym		WCSP
Euphorbia eremophila var. oblonga Domin	Synonym		WCSP
Euphorbia eremophila var. phyllanthina Baill.	Synonym		WCSP
Euphorbia eriantha Benth.	Accepted		WCSP
Euphorbia ericetorum Zumagl.	Synonym		WCSP
Euphorbia ericifolia Pax	Synonym		WCSP
Euphorbia ericoides Lam.	Accepted		WCSP
Euphorbia erigavensis S.Carter	Accepted		WCSP
Euphorbia erinacea Boiss. & Kotschy	Accepted		WCSP
Euphorbia eriocarpa Bertol.	Synonym		WCSP
Euphorbia erioclada Boiss. & Heldr.	Synonym		WCSP
Euphorbia eriogonoides Small	Synonym		WCSP
Euphorbia eriophora Boiss.	Accepted		WCSP
Euphorbia eriophylla Kar. & Kir.	Synonym		WCSP
Euphorbia erlangeri Pax	Accepted		WCSP
Euphorbia ernestii N.E.Br.	Accepted		WCSP
Euphorbia erosa Willd.	Synonym		WCSP
Euphorbia erubescens Boiss.	Accepted		WCSP
Euphorbia erythradenia Boiss.	Accepted		WCSP
Euphorbia erythradenia var. obovata Boiss.	Synonym		WCSP
Euphorbia erythraea Hemsl.	Synonym		WCSP
Euphorbia erythraeae (Berger) N.E.Br. [Illegitimate]	Synonym		WCSP
Euphorbia erythrantha F.Muell.	Synonym		WCSP
Euphorbia erythrina Link	Accepted		WCSP
Euphorbia erythrina var. burchellii Boiss.	Synonym		WCSP
Euphorbia erythrocarpa Klotzsch [Unplaced]	Unresolved		WCSP
Euphorbia erythrocephala P.R.O.Bally & Milne-Redh.	Accepted		WCSP
Euphorbia erythroclada Boiss.	Accepted		WCSP
Euphorbia erythrocoma H.Lév.	Synonym		WCSP
Euphorbia erythrocucullata Mangelsdorff	Accepted		WCSP
Euphorbia erythrodon Boiss. & Heldr.	Accepted		WCSP
Euphorbia erythrophylla Bertol.	Synonym		WCSP
Euphorbia erythrorrhiza (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia erythrosperma A.Kern.	Synonym		WCSP
Euphorbia erythroxyloides Baker	Accepted		WCSP
Euphorbia esculenta Marloth	Accepted		WCSP
Euphorbia esculenta var. cyparissioides Boiss.	Synonym		WCSP
Euphorbia espinosa Pax	Accepted		WCSP
Euphorbia espirituensis M.E.Jones	Synonym		WCSP
Euphorbia esquirolii H.Lév. & Vaniot	Synonym		WCSP
Euphorbia estevesii N.Zimm. & P.J.Braun	Accepted		WCSP
Euphorbia esula L.	Accepted		WCSP
Euphorbia esula var. acutifolia Lange	Synonym		WCSP
Euphorbia esula var. angustifolia Schur	Synonym		WCSP
Euphorbia esula subsp. aragonensis Nyman	Synonym		WCSP
Euphorbia esula var. ararica (Jord.) Nyman	Synonym		WCSP
Euphorbia esula var. caesia C.A.Mey.	Synonym		WCSP
Euphorbia esula subsp. chankoana (Vorosch.) Vorosch.	Synonym		WCSP
Euphorbia esula var. cyparioides Boiss.	Synonym		TRO
Euphorbia esula var. cyparissioides Boiss.	Accepted		WCSP
Euphorbia esula var. elata C.A.Mey.	Synonym		WCSP
Euphorbia esula subsp. esula	Accepted		WCSP
Euphorbia esula f. esulifolia (Thell.) Kuzmanov	Synonym		WCSP
Euphorbia esula var. gracilis (Klotzsch & Garcke) Nyman	Synonym		WCSP
Euphorbia esula var. humilior C.A.Mey.	Synonym		WCSP
Euphorbia esula var. latifolia (C.A.Mey. ex Ledeb.) Ledeb.	Synonym		WCSP
Euphorbia esula subsp. maglicensis (Rohlena) Hayek	Accepted		WCSP
Euphorbia esula var. mosana (Lej.) Lej.	Synonym		WCSP
Euphorbia esula var. mosana (Lej.) Boiss.	Synonym		TRO
Euphorbia esula subsp. nevadensis (Boiss. & Reut.) Malag.	Synonym		WCSP
Euphorbia esula var. orientalis (Boiss.) Kuzmanov	Synonym		WCSP
Euphorbia esula subsp. orientalis (Boiss.) Molero & Rovira	Synonym		WCSP
Euphorbia esula var. paradoxa Schur	Synonym		WCSP
Euphorbia esula subsp. paradoxa (Schur) Simonk.	Synonym		WCSP
Euphorbia esula var. parvifolia Schur	Synonym		WCSP
Euphorbia esula var. pinifolia Boiss.	Synonym		WCSP
Euphorbia esula subsp. pseudocyparissias (Jord.) Nyman	Synonym		WCSP
Euphorbia esula var. pseudotenuifolia Sennen	Synonym		WCSP
Euphorbia esula var. pubescens Regel	Synonym		WCSP
Euphorbia esula var. riparia (Jord.) Schur	Synonym		WCSP
Euphorbia esula var. salicetorum (Jord.) T.Durand	Synonym		WCSP
Euphorbia esula var. saratoi (Ardoino) Fiori	Synonym		WCSP
Euphorbia esula subsp. saratoi (Ardoino) P.Fourn.	Synonym		WCSP
Euphorbia esula var. subracemosa Schur	Synonym		WCSP
Euphorbia esula var. taurica Besser	Synonym		WCSP
Euphorbia esula subsp. tommasiniana (Bertol.) Kuzmanov	Accepted		WCSP
Euphorbia esula subsp. tristis (Besser) Rouy	Synonym		WCSP
Euphorbia esula var. triumfetti (Bertol.) Nyman	Synonym		WCSP
Euphorbia esula var. uralensis (Fisch. ex Link) Dorn	Synonym		WCSP
Euphorbia esuliformis Nees & Schauer	Accepted		WCSP
Euphorbia esuliformis var. subdentata Engelm.	Synonym		WCSP
Euphorbia esuloides (DC.) Ten.	Synonym		WCSP
Euphorbia esuloides Velen. ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia × esulolucida Andrae	Synonym		WCSP
Euphorbia etuberculosa P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia euboea Halácsy	Synonym		WCSP
Euphorbia eugeniae Prokh.	Accepted		WCSP
Euphorbia eumyrmodes Baker ex Denis [Illegitimate]	Synonym		WCSP
Euphorbia euonymoclada Croizat	Accepted		WCSP
Euphorbia euryops Bullock	Synonym		WCSP
Euphorbia eustacei N.E.Br.	Accepted		WCSP
Euphorbia evansii Pax	Accepted		WCSP
Euphorbia evansii sensu N. E. Br. p.p. non Pax	Synonym		TRO
Euphorbia evonymicarpa Chodat & Hassl.	Synonym		WCSP
Euphorbia excelsa A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia excisa Urb. & Ekman	Accepted		WCSP
Euphorbia exclusa S.Watson	Synonym		WCSP
Euphorbia exigua L.	Accepted		WCSP
Euphorbia exigua var. acuta L.	Synonym		WCSP
Euphorbia exigua subsp. exigua	Accepted		WCSP
Euphorbia exigua var. melillensis Sennen	Synonym		WCSP
Euphorbia exigua var. pycnophylla K.U.Kramer & Westra	Synonym		WCSP
Euphorbia exigua var. retusa L.	Synonym		WCSP
Euphorbia exigua var. tricuspidata (Lapeyr.) W.D.J.Koch	Synonym		WCSP
Euphorbia exigua var. truncata W.D.J.Koch	Synonym		WCSP
Euphorbia exilis L.C.Leach	Accepted		WCSP
Euphorbia exilispina S.Carter	Accepted		WCSP
Euphorbia expansa Janka	Synonym		WCSP
Euphorbia exserta (Small) Coker	Accepted		WCSP
Euphorbia exstipulata Engelm.	Accepted		WCSP
Euphorbia exstipulata var. lata Warnock & M.C.Johnst.	Synonym		WCSP
Euphorbia exumensis (Millsp.) Correll	Synonym		WCSP
Euphorbia eyassiana P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia eylesii Rendle	Accepted		WCSP
Euphorbia falcata L.	Accepted		WCSP
Euphorbia falcata var. acuminata (Lam.) St.-Amans	Synonym		WCSP
Euphorbia falcata subsp. acuminata Simonk.	Synonym		TRO
Euphorbia falcata var. croizatii Sennen & Mauricio	Synonym		WCSP
Euphorbia falcata var. ecornuta Boiss.	Synonym		WCSP
Euphorbia falcata subsp. falcata	Accepted		WCSP
Euphorbia falcata var. falciformis Griseb.	Synonym		WCSP
Euphorbia falcata var. galilaea (Boiss.) Boiss.	Accepted		WCSP
Euphorbia falcata var. latifolia Font Quer	Synonym		WCSP
Euphorbia falcata subsp. macrostegia (Bornm.) O.Schwartz	Accepted		WCSP
Euphorbia falcata var. macrostegia Bornm.	Synonym		WCSP
Euphorbia falcata var. maroccana Murb.	Synonym		WCSP
Euphorbia falcata var. minor W.D.J.Koch	Synonym		WCSP
Euphorbia falcata var. obscura (Loisel.) Nyman	Synonym		WCSP
Euphorbia falcata var. peploiforme Sennen	Synonym		WCSP
Euphorbia falcata subsp. rubra (Cav.) Mateo & Figuerola	Synonym		WCSP
Euphorbia falcata var. rubra (Cav.) Boiss.	Synonym		WCSP
Euphorbia falcata f. rubra (Cav.) Nikolic	Synonym		WCSP
Euphorbia falcata var. vernalis Fiori	Synonym		WCSP
Euphorbia fallax Hagenb.	Synonym		WCSP
Euphorbia fallax Deysson [Illegitimate]	Synonym		WCSP
Euphorbia falsa N.E.Br.	Synonym		WCSP
Euphorbia famatamboay F.Friedmann & Cremers	Accepted		WCSP
Euphorbia fanshawei L.C.Leach	Accepted		WCSP
Euphorbia fascicaulis S.Carter	Accepted		WCSP
Euphorbia fasciculata Thunb.	Accepted		WCSP
Euphorbia fasciculata sensu N. E. Br. p.p. non Thunb.	Synonym		TRO
Euphorbia fastuosa Sessé & Moc.	Synonym		WCSP
Euphorbia faucicola L.C.Leach	Accepted		WCSP
Euphorbia fauriei H.Lév. & Vaniot	Accepted		WCSP
Euphorbia faurotii Franch.	Synonym		WCSP
Euphorbia feddemae McVaugh	Accepted		WCSP
Euphorbia fendleri Torr. & A.Gray	Accepted		WCSP
Euphorbia fendleri var. chaetocalyx Boiss.	Synonym		WCSP
Euphorbia fendleri var. dissimilis Payson	Synonym		WCSP
Euphorbia fendleri var. fendleri	Accepted		WCSP
Euphorbia fendleri var. triligulata L.C.Wheeler	Accepted		WCSP
Euphorbia ferdinandii Baill.	Synonym		WCSP
Euphorbia ferganensis B.Fedtsch.	Accepted		WCSP
Euphorbia × fernandez-lopezii Molero & Rovira [Unplaced]	Unresolved		WCSP
Euphorbia ferox Marloth	Accepted		WCSP
Euphorbia festiva Sherff	Synonym		WCSP
Euphorbia fianarantsoae Ursch & Leandri	Accepted		WCSP
Euphorbia fidjiana Boiss.	Synonym		WCSP
Euphorbia fieldii Sirj.	Synonym		WCSP
Euphorbia × figertii Dörfl.	Synonym		WCSP
Euphorbia fiha Decary	Synonym		WCSP
Euphorbia fiherenensis Poiss.	Accepted		WCSP
Euphorbia filicaulis Urb.	Accepted		WCSP
Euphorbia filicina Port.	Synonym		WCSP
Euphorbia filicina var. alpina Boiss.	Synonym		WCSP
Euphorbia filicina var. montana Boiss.	Synonym		WCSP
Euphorbia filiflora Marloth	Accepted		WCSP
Euphorbia filiflora var. nana G.Will.	Synonym		WCSP
Euphorbia filifolia Glaz. [Unplaced]	Unresolved		WCSP
Euphorbia filiformis (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia filipes Benth.	Accepted		WCSP
Euphorbia fimbriata Scop.	Accepted		WCSP
Euphorbia fimbriata B.Heyne ex Roth [Illegitimate]	Synonym		WCSP
Euphorbia fimbriata Boiss. [Invalid]	Synonym		WCSP
Euphorbia fimbriata sensu N. E. Br. p.p.non Scop.	Synonym		TRO
Euphorbia fimbriata var. laxa Boiss.	Synonym		WCSP
Euphorbia fimbrilligera Mart.	Accepted		WCSP
Euphorbia finkii (Boiss.) V.W.Steinm.	Accepted		WCSP
Euphorbia finlaysonii J.M.Black	Synonym		WCSP
Euphorbia firma Ledeb.	Synonym		WCSP
Euphorbia fischeri Pax	Accepted		WCSP
Euphorbia fischeriana Steud.	Accepted		WCSP
Euphorbia fischeriana f. glaberrima (Maxim.) Oudejans	Synonym		WCSP
Euphorbia fischeriana var. komaroviana (Prokh.) G.L.Chu	Synonym		WCSP
Euphorbia fischeriana f. pilosa (Regel) Oudejans	Synonym		WCSP
Euphorbia fischeriana var. pilosa (Regel) Kitag.	Synonym		TRO
Euphorbia fissispina P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia fistulosa M.S.Khan	Accepted		WCSP
Euphorbia flabellaris Andersson ex Boiss.	Synonym		WCSP
Euphorbia flabelliformis (Engelm.) A. Nelson	Synonym		TRO
Euphorbia flagelliformis (Engelm.) Engelm.	Synonym		WCSP
Euphorbia flamandii Batt.	Synonym		WCSP
Euphorbia flanaganii N.E.Br.	Accepted		WCSP
Euphorbia flavicoma DC.	Accepted		WCSP
Euphorbia flavicoma subsp. brittingeri (Opiz ex Samp.) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia flavicoma subsp. costeana (Rouy) Vindt & Guin. ex Greuter & Burdet	Accepted		WCSP
Euphorbia flavicoma subsp. flavicoma	Accepted		WCSP
Euphorbia flavicoma subsp. mariolensis (Rouy) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia flavicoma subsp. polygalifolia (Boiss. & Reut.) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia flavicoma var. ruscinonensis (Boiss.) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia flavicoma var. velutina (Boiss.) Breistr.	Synonym		WCSP
Euphorbia flavicoma subsp. verrucosa (Fiori) Pignatti	Synonym		WCSP
Euphorbia flavopurpurea Willk.	Synonym		WCSP
Euphorbia fleckii Pax	Accepted		WCSP
Euphorbia flerowii Woronow ex Flerov [Unplaced]	Unresolved		WCSP
Euphorbia fleurotii Jord.	Synonym		WCSP
Euphorbia flexicaulis Scheele	Synonym		WCSP
Euphorbia flexuosa Kunth	Synonym		WCSP
Euphorbia floccosiuscula M.E.Jones	Synonym		WCSP
Euphorbia floresii Standl.	Synonym		WCSP
Euphorbia floribunda Engelm. ex Boiss.	Accepted		WCSP
Euphorbia florida Engelm.	Accepted		WCSP
Euphorbia floridana Chapm.	Accepted		WCSP
Euphorbia fluminis S.Carter	Accepted		WCSP
Euphorbia fodhliana Deflers	Synonym		WCSP
Euphorbia foetida Hoppe ex W.D.J.Koch [Illegitimate]	Synonym		WCSP
Euphorbia foetida Schult. ex Rchb. [Illegitimate]	Synonym		WCSP
Euphorbia foetida Kit.	Synonym		WCSP
Euphorbia foliata Buch.-Ham. ex Dillwyn	Synonym		WCSP
Euphorbia foliiflua Ule	Synonym		WCSP
Euphorbia foliolosa Boiss.	Accepted		WCSP
Euphorbia foliosa (Klotzsch & Garcke) N.E.Br.	Accepted		WCSP
Euphorbia fontanesii Steud.	Synonym		WCSP
Euphorbia fontqueriana Greuter	Accepted		WCSP
Euphorbia forbesii Sherff	Synonym		WCSP
Euphorbia formosana Hayata	Synonym		WCSP
Euphorbia forolensis L.E.Newton	Accepted		WCSP
Euphorbia forsskalii J.Gay	Accepted		WCSP
Euphorbia forsskalii var. glabrata J.Gay	Synonym		WCSP
Euphorbia fortissima L.C.Leach	Accepted		WCSP
Euphorbia fortuita A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia fosbergii (J.Florence) Govaerts	Accepted		WCSP
Euphorbia fossulata Boiss. & Gaill.	Synonym		WCSP
Euphorbia fournieri Rebut	Synonym		WCSP
Euphorbia fournieri Leandri	Synonym		WCSP
Euphorbia fractiflexa S.Carter & J.R.I.Wood	Accepted		WCSP
Euphorbia fragifera Schur [Illegitimate]	Synonym		WCSP
Euphorbia fragifera Jan	Accepted		WCSP
Euphorbia fragifera var. inermis Nyman	Synonym		WCSP
Euphorbia fragiliramulosa L.C.Leach	Synonym		WCSP
Euphorbia fragilis Decne.	Synonym		WCSP
Euphorbia francescae L.C.Leach	Synonym		WCSP
Euphorbia franchetii B.Fedtsch.	Accepted		WCSP
Euphorbia franckiana A.Berger	Accepted		WCSP
Euphorbia francoana Boiss.	Accepted		WCSP
Euphorbia francoisii Leandri	Accepted		WCSP
Euphorbia francoisii var. rakatozafyi Cremers	Synonym		WCSP
Euphorbia frangulifolia Kunth	Synonym		WCSP
Euphorbia frankii Lavranos	Accepted		WCSP
Euphorbia franksiae N.E.Br.	Accepted		WCSP
Euphorbia franksiae var. zuluensis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia fraseri Boiss.	Accepted		WCSP
Euphorbia fraterna N.E.Br.	Synonym		WCSP
Euphorbia frickiana N.E.Br.	Synonym		WCSP
Euphorbia friderichsthalii Boiss.	Synonym		WCSP
Euphorbia friedrichiae Dinter	Accepted		WCSP
Euphorbia friedrichsthalii Boiss.	Synonym		TRO
Euphorbia friesii (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia friesiorum (Hassl.) S.Carter	Accepted		WCSP
Euphorbia frivaldszkyana Dörfl. & Degen ex Halácsy	Synonym		WCSP
Euphorbia froedinii Rech.f.	Synonym		WCSP
Euphorbia fructuspini Mill.	Synonym		WCSP
Euphorbia frutescens N.E.Br.	Synonym		WCSP
Euphorbia fruticosa Edgew. [Illegitimate]	Synonym		WCSP
Euphorbia fruticosa Biv. [Illegitimate]	Synonym		WCSP
Euphorbia fruticosa Forssk.	Accepted		WCSP
Euphorbia fruticulosa Engelm. ex Boiss.	Accepted		WCSP
Euphorbia fruticulosa var. hirtella M.C.Johnst.	Synonym		WCSP
Euphorbia fuhsii Bornm. & Sint. ex Prokh. [Illegitimate]	Synonym		WCSP
Euphorbia fulgens Karw. ex Klotzsch	Accepted		WCSP
Euphorbia fulva Stapf	Synonym		WCSP
Euphorbia furcata N.E.Br.	Accepted		WCSP
Euphorbia furcatifolia M.G.Gilbert	Accepted		WCSP
Euphorbia furcillata Kunth	Accepted		WCSP
Euphorbia furcillata var. ribana M.C.Johnst.	Synonym		WCSP
Euphorbia fusca Marloth	Accepted		WCSP
Euphorbia fuscolanata Gilli	Accepted		WCSP
Euphorbia fusiformis Buch.-Ham. ex D.Don	Accepted		WCSP
Euphorbia fusiformis var. khandallensis (Blatt. & Hallb.) Binojk. & N.P.Balakr.	Synonym		WCSP
Euphorbia fwambensis (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia gaditana Coss.	Accepted		WCSP
Euphorbia gaillardotii Boiss. & Blanche	Accepted		WCSP
Euphorbia galapageia B.L.Rob. & Greenm.	Accepted		WCSP
Euphorbia galgalana S.Carter	Accepted		WCSP
Euphorbia galiciana McVaugh	Synonym		WCSP
Euphorbia galilaea Boiss.	Synonym		WCSP
Euphorbia galioides Boiss.	Synonym		WCSP
Euphorbia galpinii Pax [Illegitimate]	Synonym		WCSP
Euphorbia gamkensis J.G.Marx	Accepted		WCSP
Euphorbia gammaranoi G.Will.	Accepted		WCSP
Euphorbia garanbiensis Hayata	Accepted		WCSP
Euphorbia garberi Engelm. ex Chapm.	Accepted		WCSP
Euphorbia gariepina Boiss.	Accepted		WCSP
Euphorbia gariepina subsp. balsamea (Welw. ex Hiern) L.C.Leach	Accepted		WCSP
Euphorbia gariepina subsp. gariepina	Accepted		WCSP
Euphorbia garkeana Boiss.	Accepted		WCSP
Euphorbia garrullae Sennen [Invalid]	Synonym		WCSP
Euphorbia garuana N.E.Br.	Accepted		WCSP
Euphorbia gasparrinii Boiss.	Accepted		WCSP
Euphorbia gasparrinii subsp. samnitica (Fiori) Pignatti	Accepted		WCSP
Euphorbia gatbergensis N.E.Br.	Accepted		WCSP
Euphorbia gaubae (Soják) Radcl.-Sm.	Accepted		WCSP
Euphorbia gaubae var. velutina (Bornm. & Gauba) Oudejans	Synonym		WCSP
Euphorbia gaudichaudii Boiss.	Accepted		WCSP
Euphorbia gaumeri Millsp.	Accepted		WCSP
Euphorbia × gayeri Borós & Soó	Accepted		WCSP
Euphorbia gayi Salis	Accepted		WCSP
Euphorbia gayi var. balearica Willk.	Synonym		WCSP
Euphorbia gayi var. variabilis (Ces.) Fiori	Synonym		WCSP
Euphorbia geayi Costantin & Gallaud	Synonym		WCSP
Euphorbia gebelica Brullo	Accepted		WCSP
Euphorbia gedrosiaca Rech.f., Aellen & Esfand.	Accepted		WCSP
Euphorbia geldorensis S.Carter	Accepted		WCSP
Euphorbia gemella Lag.	Synonym		WCSP
Euphorbia geminata (Aiton) Marloth ex A.C.White, R.A.Dyer & B.Sloane [Illegitimate]	Synonym		WCSP
Euphorbia geminiloba Millsp.	Synonym		WCSP
Euphorbia geminispina Haw. ex Loud. [Unplaced]	Unresolved		WCSP
Euphorbia gemmea P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia geniculata Ortega	Synonym		WCSP
Euphorbia genistoides P.J.Bergius	Accepted		WCSP
Euphorbia genistoides var. corifolia (Lam.) N.E.Br.	Accepted		WCSP
Euphorbia genistoides var. genistoides	Accepted		WCSP
Euphorbia genoudiana Ursch & Leandri	Accepted		WCSP
Euphorbia gentilis N.E.Br.	Accepted		WCSP
Euphorbia gentryi V.W.Steinm. & T.F.Daniel	Accepted		WCSP
Euphorbia georgei Oudejans	Accepted		WCSP
Euphorbia gerardiana Jacq.	Synonym		WCSP
Euphorbia gerardiana var. arenivaga Martrin-Donos	Synonym		WCSP
Euphorbia gerardiana var. dentata Chabert	Synonym		WCSP
Euphorbia gerardiana var. firma (Ledeb.) Boiss.	Synonym		WCSP
Euphorbia gerardiana var. hohenackeri Boiss.	Synonym		WCSP
Euphorbia gerardiana var. homophylla (Lange ex Schrank) Nyman	Synonym		WCSP
Euphorbia gerardiana var. intermedia Savul.	Synonym		WCSP
Euphorbia gerardiana var. lanceolata Cariot	Synonym		WCSP
Euphorbia gerardiana var. latifolia J.J.Schmitz & Regel	Synonym		WCSP
Euphorbia gerardiana var. minor Duby	Synonym		WCSP
Euphorbia gerardiana subsp. saxicola Velen.	Synonym		WCSP
Euphorbia gerardiana var. sturii Holuby	Synonym		WCSP
Euphorbia germainii Phil.	Accepted		WCSP
Euphorbia geroldii Rauh	Accepted		WCSP
Euphorbia geyeri Engelm. & A.Gray	Accepted		WCSP
Euphorbia geyeri var. microsperma A.Gray	Synonym		WCSP
Euphorbia geyeri var. wheeleriana Warnock & M.C.Johnst.	Synonym		WCSP
Euphorbia × gibelliana Peola	Accepted		WCSP
Euphorbia gibraltarica Wolley-Dod	Synonym		WCSP
Euphorbia giessii L.C.Leach	Accepted		WCSP
Euphorbia gilbertiana Bisseret & Specks	Accepted		WCSP
Euphorbia gilbertii A.Berger	Synonym		WCSP
Euphorbia gillettii P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia giumboensis A.Hässl.	Accepted		WCSP
Euphorbia glaberrima Klotzsch [Illegitimate]	Synonym		WCSP
Euphorbia glaberrima K.Koch	Accepted		WCSP
Euphorbia glabrata Sw.	Synonym		WCSP
Euphorbia glabriflora Vis.	Accepted		WCSP
Euphorbia gladiata (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia gladiosa M.E.Jones	Synonym		WCSP
Euphorbia glandularis L.C.Leach & G.Will.	Accepted		WCSP
Euphorbia glandulifera Roxb.	Unresolved		TRO
Euphorbia glanduligera Pax	Accepted		WCSP
Euphorbia glareosa Pall. ex M.Bieb.	Accepted		WCSP
Euphorbia glareosa subsp. cadrilateri (Prodán) Kuzmanov	Synonym		WCSP
Euphorbia glareosa var. lasiocarpa Boiss.	Synonym		WCSP
Euphorbia glareosa subsp. maleevii (Tamamsch.) Tamamsch.	Synonym		WCSP
Euphorbia glareosa var. minor Boiss.	Synonym		WCSP
Euphorbia glareosa var. pannonica (Host) Nyman	Synonym		WCSP
Euphorbia glareosa subsp. stepposa (Zoz ex Prokh.) Kuzmanov	Synonym		WCSP
Euphorbia glareosa subsp. stepposa Kuzm.	Synonym		TRO
Euphorbia glareosa var. varnensis Velen.	Synonym		WCSP
Euphorbia glauca G.Forst.	Accepted		WCSP
Euphorbia glauca Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia glauca Steud.	Synonym		WCSP
Euphorbia glaucella Pax	Synonym		WCSP
Euphorbia glaucescens Willd.	Synonym		WCSP
Euphorbia glaucophylla Poir.	Synonym		WCSP
Euphorbia glaucopoda Diels	Synonym		WCSP
Euphorbia glebulosa Coss. & Durieu	Synonym		WCSP
Euphorbia glebulosa var. almeriensis Lange	Synonym		WCSP
Euphorbia glebulosa subsp. intermedia Maire	Synonym		WCSP
Euphorbia globosa (Haw.) Sims	Accepted		WCSP
Euphorbia globulicaulis S.Carter	Accepted		WCSP
Euphorbia globulifera Kunth	Synonym		WCSP
Euphorbia globulosa Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia globulosa var. peplidea Boiss.	Synonym		WCSP
Euphorbia glochidiata Pax	Accepted		WCSP
Euphorbia glomerifera (Millsp.) L.C.Wheeler	Synonym		WCSP
Euphorbia glomerulans (Prokh.) Prokh.	Synonym		WCSP
Euphorbia glyptosperma Engelm.	Accepted		WCSP
Euphorbia glyptosperma var. pubescens Boiss.	Synonym		WCSP
Euphorbia glyptosperma var. tenerrima Engelm.	Synonym		WCSP
Euphorbia gmelinii Steud.	Synonym		WCSP
Euphorbia gmelinii var. angustifolia Krylov	Synonym		WCSP
Euphorbia godana Buddens., Lawant & Lavranos	Accepted		WCSP
Euphorbia goeringii Steud. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia goetzei Pax	Accepted		WCSP
Euphorbia × goldei Prokh.	Accepted		WCSP
Euphorbia goliana Comm. ex Lam.	Accepted		WCSP
Euphorbia golisana N.E.Br.	Synonym		WCSP
Euphorbia gollmeriana Klotzsch ex Boiss.	Accepted		WCSP
Euphorbia golondrina L.C.Wheeler	Accepted		WCSP
Euphorbia gomesii Croizat ex Gomes [Unplaced]	Unresolved		WCSP
Euphorbia gorenflotii Mobayen	Accepted		WCSP
Euphorbia gorgonis A.Berger	Accepted		WCSP
Euphorbia gorinii Chiov.	Synonym		WCSP
Euphorbia gossweileri Pax	Synonym		WCSP
Euphorbia gossypina Pax	Accepted		WCSP
Euphorbia gossypina subsp. gossypina	Accepted		WCSP
Euphorbia gottlebei Rauh	Accepted		WCSP
Euphorbia goudotii Boiss.	Accepted		WCSP
Euphorbia goyazensis Boiss.	Accepted		WCSP
Euphorbia gracilicaulis L.C.Leach	Accepted		WCSP
Euphorbia gracilior Cronquist	Accepted		WCSP
Euphorbia gracilipes Baill.	Synonym		WCSP
Euphorbia graciliramea Pax	Accepted		WCSP
Euphorbia gracilis Pav. ex Moq. [Invalid]	Synonym		WCSP
Euphorbia gracilis Loisel.	Synonym		WCSP
Euphorbia gracilis Elliott [Illegitimate]	Synonym		WCSP
Euphorbia gracilis Besser ex M.Bieb. [Illegitimate]	Synonym		WCSP
Euphorbia gracilis var. rotundifolia A.Wood	Synonym		WCSP
Euphorbia gracillima S.Watson	Accepted		WCSP
Euphorbia gradyi V.W.Steinm. & Ram.-Roa	Accepted		WCSP
Euphorbia graeca Boiss. & Spruner	Synonym		WCSP
Euphorbia graeca var. brachyceras Candargy	Synonym		WCSP
Euphorbia graeca subsp. dalmatica (Vis.) Nyman	Synonym		WCSP
Euphorbia graminea Schltdl. & Cham. [Illegitimate]	Synonym		WCSP
Euphorbia graminea Jacq.	Accepted		WCSP
Euphorbia graminea var. acutifolia Boiss.	Synonym		WCSP
Euphorbia graminea var. graminea	Accepted		WCSP
Euphorbia graminea var. lancifolia Millsp.	Synonym		WCSP
Euphorbia graminea var. novogaliciana McVaugh	Accepted		WCSP
Euphorbia graminea var. pedunculosa (A.Rich.) Boiss.	Synonym		WCSP
Euphorbia graminea var. picta (Jacq.) Boiss.	Synonym		WCSP
Euphorbia graminea var. subsinuata (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia graminea var. virgata Millsp.	Synonym		WCSP
Euphorbia graminifolia Michx. [Illegitimate]	Synonym		WCSP
Euphorbia graminifolia Vill.	Accepted		WCSP
Euphorbia graminifolia subsp. tommasiniana (Bertol.) Oudejans	Synonym		WCSP
Euphorbia graminifolia subsp. zhiguliensis (Prokh.) Oudejans	Synonym		WCSP
Euphorbia grammata (McVaugh) Oudejans	Accepted		WCSP
Euphorbia grandialata R.A.Dyer	Accepted		WCSP
Euphorbia grandicornis Goebel ex N.E.Br.	Accepted		WCSP
Euphorbia grandidens K.I.Goebel [Illegitimate]	Synonym		WCSP
Euphorbia grandidens Haw.	Accepted		WCSP
Euphorbia grandidieri Baill.	Accepted		WCSP
Euphorbia grandifolia Haw.	Accepted		WCSP
Euphorbia grandilobata Chiov.	Accepted		WCSP
Euphorbia grandis Lem.	Synonym		WCSP
Euphorbia graniticola L.C.Leach	Accepted		WCSP
Euphorbia grantii Oliv.	Accepted		WCSP
Euphorbia grantii var. friesiorum Hassl.	Synonym		WCSP
Euphorbia granulata Forssk.	Accepted		WCSP
Euphorbia granulata var. decumbens Forssk.	Synonym		WCSP
Euphorbia granulata var. dentata N.E.Br.	Synonym		WCSP
Euphorbia granulata var. glaberrima Boiss.	Synonym		WCSP
Euphorbia granulata var. glabra Maire	Synonym		WCSP
Euphorbia granulata var. glabrata (J.Gay) Boiss.	Accepted		WCSP
Euphorbia granulata var. granulata	Accepted		WCSP
Euphorbia granulata var. turcomanica (Boiss.) Hadidi	Accepted		WCSP
Euphorbia graveolens N.E.Br.	Synonym		WCSP
Euphorbia greenei Millsp.	Synonym		WCSP
Euphorbia greenwayi P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia gregaria Marloth	Accepted		WCSP
Euphorbia gregersenii K.Malý ex Beck	Accepted		WCSP
Euphorbia greggii Engelm. ex Boiss.	Accepted		WCSP
Euphorbia greuteri N.Kilian, Kürschner & P.Hein	Accepted		WCSP
Euphorbia griffithii Hook.f.	Accepted		WCSP
Euphorbia griffithii var. bhutanica (Fisch.) D.G.Long	Accepted		WCSP
Euphorbia griffithii var. griffithii	Accepted		WCSP
Euphorbia grisea Engelm. ex Boiss.	Accepted		WCSP
Euphorbia griseola Pax	Accepted		WCSP
Euphorbia grisophylla M.S.Khan	Accepted		WCSP
Euphorbia groenewaldii R.A.Dyer	Accepted		WCSP
Euphorbia grosseri Pax	Accepted		WCSP
Euphorbia grossheimii (Prokh.) Prokh.	Accepted		WCSP
Euphorbia guachanca Azara	Accepted		WCSP
Euphorbia guadalajarana S.Watson	Accepted		WCSP
Euphorbia guadalupensis J.T.Howell	Synonym		WCSP
Euphorbia guanarensis Pittier	Accepted		WCSP
Euphorbia guatemalensis Standl. & Steyerm.	Accepted		WCSP
Euphorbia gueinzii Boiss.	Accepted		WCSP
Euphorbia gueinzii var. albovillosa (Pax) N.E.Br.	Synonym		WCSP
Euphorbia guentheri (Pax) Bruyns	Accepted		WCSP
Euphorbia guerichiana Pax ex Engl.	Accepted		WCSP
Euphorbia guestii Blakelock	Synonym		WCSP
Euphorbia guiengola W.R.Buck & Huft	Accepted		WCSP
Euphorbia guilielmii A.Gray	Synonym		WCSP
Euphorbia guillauminiana Boiteau	Accepted		WCSP
Euphorbia guillemetii Ursch & Leandri	Synonym		WCSP
Euphorbia guineensis Brot. ex N.E.Br.	Accepted		WCSP
Euphorbia gulestanica Podlech	Accepted		WCSP
Euphorbia gumaroi J.Meyrán	Accepted		WCSP
Euphorbia gummifera Boiss.	Accepted		WCSP
Euphorbia gundlachii Urb.	Accepted		WCSP
Euphorbia guntensis (Prokh.) Prokh.	Accepted		WCSP
Euphorbia gussoneana Lojac.	Synonym		WCSP
Euphorbia × gusuleacii Prodán & Soran	Unresolved		WCSP
Euphorbia guyoniana Boiss. & Reut.	Accepted		WCSP
Euphorbia gymnadenia Urb.	Synonym		WCSP
Euphorbia gymnocalycioides M.G.Gilbert & S.Carter	Accepted		WCSP
Euphorbia gymnoclada Engelm. [Illegitimate]	Synonym		WCSP
Euphorbia gymnoclada Boiss.	Accepted		WCSP
Euphorbia gymnonota Urb.	Accepted		WCSP
Euphorbia gynophora Pax	Synonym		WCSP
Euphorbia gypsicola Rech.f. & Aellen	Accepted		WCSP
Euphorbia gypsophila S.Carter	Accepted		WCSP
Euphorbia hadramautica Baker	Accepted		WCSP
Euphorbia haeleeleana Herbst	Accepted		WCSP
Euphorbia haematantha Boiss.	Accepted		WCSP
Euphorbia haematodes Boiss.	Synonym		WCSP
Euphorbia hainanensis Croizat	Accepted		WCSP
Euphorbia hajhirensis Radcl.-Sm.	Accepted		WCSP
Euphorbia hakutosanensis Hurus.	Accepted		WCSP
Euphorbia halacsyi Formánek	Synonym		WCSP
Euphorbia halemanui Sherff	Accepted		WCSP
Euphorbia halipedicola L.C.Leach	Accepted		WCSP
Euphorbia halleri Dinter	Synonym		WCSP
Euphorbia hallii R.A.Dyer	Accepted		WCSP
Euphorbia halophila Bornm. & Gauba [Illegitimate]	Synonym		WCSP
Euphorbia halophila Miq.	Synonym		WCSP
Euphorbia halophila var. velutina Bornm. & Gauba	Synonym		WCSP
Euphorbia hamaderoensis A.G.Mill.	Accepted		WCSP
Euphorbia hamata (Haw.) Sweet	Accepted		WCSP
Euphorbia hamiltonii Oudejans	Accepted		WCSP
Euphorbia handeniensis S.Carter	Accepted		WCSP
Euphorbia handiensis Burchard	Accepted		WCSP
Euphorbia hararensis Pax	Accepted		WCSP
Euphorbia harmandii Gagnep.	Synonym		WCSP
Euphorbia hartwegiana Boiss.	Synonym		WCSP
Euphorbia hassleriana Chodat	Synonym		WCSP
Euphorbia hastisquama N.E.Br.	Synonym		WCSP
Euphorbia haussknechtii Boiss.	Accepted		WCSP
Euphorbia havanensis Willd. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia haworthii Sweet [Illegitimate]	Synonym		WCSP
Euphorbia hebecarpa Boiss.	Accepted		WCSP
Euphorbia hebegyne Pax & K.Hoffm. ex Emrich	Synonym		WCSP
Euphorbia hedigeriana (Malaisse) Bruyns	Accepted		WCSP
Euphorbia hedyotoides N.E.Br.	Accepted		WCSP
Euphorbia heishuiensis W.T.Wang	Accepted		WCSP
Euphorbia heldreichii Orph. ex Boiss.	Accepted		WCSP
Euphorbia heldreichii var. roeseri Boiss.	Synonym		WCSP
Euphorbia helenae Urb.	Accepted		WCSP
Euphorbia helenae subsp. helenae	Accepted		WCSP
Euphorbia heleniana Thell. & Stapf	Accepted		WCSP
Euphorbia helicothele Lem.	Synonym		WCSP
Euphorbia helioscopia L.	Accepted		WCSP
Euphorbia helioscopia subsp. dominii (Rohlena) K.Malý	Synonym		WCSP
Euphorbia helioscopia var. haussknechtii (Boiss.) Boiss.	Synonym		WCSP
Euphorbia helioscopia subsp. helioscopia	Accepted		WCSP
Euphorbia helioscopia subsp. helioscopioides (Loscos & J.Pardo) Nyman	Synonym		WCSP
Euphorbia helioscopia f. litoralis (Hurus.) Oudejans	Synonym		WCSP
Euphorbia helioscopia f. major (Mutel) Oudejans	Synonym		WCSP
Euphorbia helioscopia var. major Mutel	Synonym		WCSP
Euphorbia helioscopioides Loscos & J.Pardo	Synonym		WCSP
Euphorbia helioscopioides Blatt. [Illegitimate]	Synonym		WCSP
Euphorbia helleri Millsp.	Accepted		WCSP
Euphorbia helwigii Urb. & Ekman	Accepted		WCSP
Euphorbia henricksonii M.C.Johnst.	Accepted		WCSP
Euphorbia henryi Hemsl.	Synonym		WCSP
Euphorbia hepatica P.R.O.Bally & S.Carter [Illegitimate]	Synonym		WCSP
Euphorbia hepatica Urb. & Ekman	Accepted		WCSP
Euphorbia heptagona L.	Accepted		WCSP
Euphorbia heptagona var. dentata N.E. Br.	Accepted		TRO
Euphorbia heptagona var. ramosa A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia heptagona var. subsessilis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia heptagona var. viridis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia heptapotamica Golosk.	Accepted		WCSP
Euphorbia heraldiana (Millsp.) Oudejans	Accepted		WCSP
Euphorbia herbacea (Pax) Bruyns	Accepted		WCSP
Euphorbia herbstii (W.L.Wagner) Oudejans	Accepted		WCSP
Euphorbia hercegovina Beck	Synonym		WCSP
Euphorbia hereroensis Pax	Synonym		WCSP
Euphorbia herman-schwartzii Rauh	Accepted		WCSP
Euphorbia hermentiana Lem.	Synonym		WCSP
Euphorbia hernandez-pachecoi Caball.	Synonym		WCSP
Euphorbia herniariifolia Willd.	Accepted		WCSP
Euphorbia herniariifolia var. hebecarpa Boiss.	Synonym		WCSP
Euphorbia herniariifolia var. herniariifolia	Accepted		WCSP
Euphorbia herniarioides Nutt.	Synonym		WCSP
Euphorbia herpetorrhiza Prokh. [Illegitimate]	Synonym		WCSP
Euphorbia herrei A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia herronii Riddell	Synonym		WCSP
Euphorbia herteri Arechav.	Accepted		WCSP
Euphorbia herteri var. glabra Arechav.	Synonym		WCSP
Euphorbia heteracantha Pax	Synonym		WCSP
Euphorbia heteradena Boiss. & Buhse [Illegitimate]	Synonym		WCSP
Euphorbia heteradena Jaub. & Spach	Accepted		WCSP
Euphorbia heterantha Nutt.	Synonym		WCSP
Euphorbia heterochroma Pax	Accepted		WCSP
Euphorbia heterochroma subsp. heterochroma	Accepted		WCSP
Euphorbia heterochroma var. mitis (Pax) N.E.Br.	Synonym		WCSP
Euphorbia heterodoxa Müll.Arg.	Accepted		WCSP
Euphorbia heterophylla L.	Accepted		WCSP
Euphorbia heterophylla Desf. [Illegitimate]	Synonym		WCSP
Euphorbia heterophylla var. barbellata (Engelm.) Holz.	Synonym		WCSP
Euphorbia heterophylla var. brasiliensis Müll.Arg.	Synonym		WCSP
Euphorbia heterophylla f. cyathophora (Murray) Voss	Synonym		WCSP
Euphorbia heterophylla var. cyathophora (Murray) Griseb.	Synonym		WCSP
Euphorbia heterophylla var. cyathophora (Murray) Boiss.	Synonym		TRO
Euphorbia heterophylla var. elliptica (Lam.) Kuntze	Synonym		WCSP
Euphorbia heterophylla var. eriocarpa Millsp.	Synonym		WCSP
Euphorbia heterophylla var. geniculata (Ortega) M.Gómez	Synonym		WCSP
Euphorbia heterophylla var. graminifolia Engelm.	Synonym		WCSP
Euphorbia heterophylla f. hirticaulis Kuntze	Synonym		WCSP
Euphorbia heterophylla var. linifolia Kuntze	Synonym		WCSP
Euphorbia heterophylla var. minor Boiss.	Synonym		WCSP
Euphorbia heteropodum Pax	Accepted		WCSP
Euphorbia heteropodum var. formosa (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia heteropodum var. heteropodum	Accepted		WCSP
Euphorbia heterospina S.Carter	Accepted		WCSP
Euphorbia hexadenia Denis	Accepted		WCSP
Euphorbia hexagona Nutt. ex Spreng.	Accepted		WCSP
Euphorbia hexagonoides S.Watson	Accepted		WCSP
Euphorbia heyligersiana P.I.Forst.	Accepted		WCSP
Euphorbia heyneana Spreng.	Accepted		WCSP
Euphorbia heyneana subsp. galioides (Boiss.) Panigrahi	Accepted		WCSP
Euphorbia heyneana subsp. heyneana	Accepted		WCSP
Euphorbia heyneana subsp. nilagirica (Miq.) Panigrahi	Accepted		WCSP
Euphorbia heyneana var. scindica Boiss.	Synonym		WCSP
Euphorbia hiberna Welw. ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia hiberna Lepech. [Illegitimate]	Synonym		WCSP
Euphorbia hibernica Spreng. [Illegitimate]	Synonym		WCSP
Euphorbia hiernii (Croizat) Oudejans	Accepted		WCSP
Euphorbia hieroglyphica Coss. & Durieu ex Boiss.	Accepted		WCSP
Euphorbia hieroglyphica Correll [Illegitimate]	Synonym		WCSP
Euphorbia hieronymi Subils	Accepted		WCSP
Euphorbia hieronymi f. parvifolia (Hieron.) Oudejans	Synonym		WCSP
Euphorbia hierosolymitana Boiss.	Accepted		WCSP
Euphorbia hierosolymitana var. hierosolymitana	Accepted		WCSP
Euphorbia hierosolymitana var. ramanensis (Baum) Zohary	Accepted		WCSP
Euphorbia hildebrandtii Baill.	Accepted		WCSP
Euphorbia hillebrandii H.Lév.	Accepted		WCSP
Euphorbia hillebrandii var. palikeana O.Deg. & Sherff	Synonym		WCSP
Euphorbia hillebrandii var. waimanoana Sherff	Synonym		WCSP
Euphorbia himalayensis (Klotzsch) Boiss.	Synonym		WCSP
Euphorbia hindsiana Benth.	Accepted		WCSP
Euphorbia hinkleyorum I.M.Johnst.	Accepted		WCSP
Euphorbia hintonii L.C.Wheeler	Accepted		WCSP
Euphorbia hippocrepica Hemsl.	Synonym		WCSP
Euphorbia hirsuta Kit. ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia hirsuta (Torr.) Wiegand [Illegitimate]	Synonym		WCSP
Euphorbia × hirsuta Schur [Illegitimate]	Unresolved		WCSP
Euphorbia hirsuta L.	Accepted		WCSP
Euphorbia hirsuta f. crispata (Willd. ex Hornem.) Oudejans	Synonym		WCSP
Euphorbia hirsuta f. glabrescens (St.-Lag.) Oudejans	Synonym		WCSP
Euphorbia hirsuta f. integrifolia (Deysson) Oudejans	Synonym		WCSP
Euphorbia hirsuta f. laevis (Merino) Oudejans	Synonym		WCSP
Euphorbia hirsuta var. leucotricha (Boiss.) Oudejans	Synonym		WCSP
Euphorbia hirsuta f. serrata (Lojac.) Oudejans	Synonym		WCSP
Euphorbia hirsuta f. serrulatifolia (Deysson) Oudejans	Synonym		WCSP
Euphorbia hirsuta var. subglabra (Gren. & Godr.) Nebot & al.	Synonym		WCSP
Euphorbia hirsuta f. subglabra (Gren. & Godr.) Oudejans	Synonym		WCSP
Euphorbia hirta L.	Accepted		WCSP
Euphorbia hirta var. destituta L.C.Wheeler	Synonym		WCSP
Euphorbia hirta var. glaberrima Koidz.	Synonym		WCSP
Euphorbia hirta var. nocens L.C.Wheeler	Synonym		WCSP
Euphorbia hirta var. ophthalmica (Pers.) Allem & Irgang	Synonym		WCSP
Euphorbia hirta var. procumbens (Boiss.) N.E.Br.	Synonym		WCSP
Euphorbia hirtella Boiss.	Accepted		WCSP
Euphorbia hirtella var. brevifolia Müll.Arg.	Synonym		WCSP
Euphorbia hirtella var. longifolia Müll.Arg.	Synonym		WCSP
Euphorbia hirtella var. pusilla Müll.Arg.	Synonym		WCSP
Euphorbia hirtula Engelm. ex S.Watson	Synonym		WCSP
Euphorbia hislopii N.E.Br.	Synonym		WCSP
Euphorbia hispida Boiss.	Accepted		WCSP
Euphorbia hissarica Lipsky ex Prokh. [Illegitimate]	Synonym		WCSP
Euphorbia hochstetteriana Pax	Synonym		WCSP
Euphorbia hockii De Wild.	Accepted		WCSP
Euphorbia hoffmanniana (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia hofstaetteri Rauh	Accepted		WCSP
Euphorbia hohenackeri Orph. ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia holmesiae Lavranos	Accepted		WCSP
Euphorbia holochlorina Rizzini	Accepted		WCSP
Euphorbia holstii Pax	Synonym		WCSP
Euphorbia holstii var. hebecarpa Pax	Synonym		WCSP
Euphorbia homophylla Lange ex Schrank	Synonym		WCSP
Euphorbia hondurana Standl. & L.O.Williams	Accepted		WCSP
Euphorbia hookeri Steud. [Illegitimate]	Synonym		WCSP
Euphorbia hookeri var. integrifolia Hillebr.	Synonym		WCSP
Euphorbia hooveri L.C.Wheeler	Accepted		WCSP
Euphorbia hopetownensis Nel	Accepted		WCSP
Euphorbia hormorrhiza Radcl.-Sm.	Accepted		WCSP
Euphorbia horombensis Ursch & Leandri	Accepted		WCSP
Euphorbia horrida Boiss.	Accepted		WCSP
Euphorbia horrida var. major A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia horrida var. noorsveldensis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia horrida var. striata A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia hortensis Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia horwoodii S.Carter & Lavranos	Accepted		WCSP
Euphorbia hottentota Marloth	Accepted		WCSP
Euphorbia houlletii Rebut	Synonym		TRO
Euphorbia howellii L.C.Wheeler	Synonym		WCSP
Euphorbia hsinchuensis (S.C.Lin & S.M.Chaw) C.Y.Wu & J.S.Ma	Accepted		WCSP
Euphorbia huanchahana (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia huanchahana subsp. penazuelensis Croizat	Synonym		WCSP
Euphorbia huanchahana var. peperomioides Croizat	Synonym		WCSP
Euphorbia hubertii Pax	Accepted		WCSP
Euphorbia huillensis Pax	Synonym		WCSP
Euphorbia humayensis Brandegee	Accepted		WCSP
Euphorbia humbertiana Maire	Synonym		WCSP
Euphorbia humbertii Denis	Accepted		WCSP
Euphorbia humboldtii Willd.	Synonym		WCSP
Euphorbia humifusa Willd.	Accepted		WCSP
Euphorbia humifusa f. glabra (Thell.) Murata	Synonym		WCSP
Euphorbia humifusa var. glabra Thell.	Synonym		WCSP
Euphorbia humifusa f. glabra (Thell.) S.Z. Liou	Synonym		TRO
Euphorbia humifusa f. pilosa (Thell.) S.Z.Liou	Synonym		WCSP
Euphorbia humifusa var. pilosa Thell.	Synonym		WCSP
Euphorbia humifusa var. pseudochamaesyce (Fisch. & C.A.Mey.) Murata	Synonym		WCSP
Euphorbia humilis Royle [Illegitimate]	Synonym		WCSP
Euphorbia humilis C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia humistrata Engelm. ex A.Gray	Accepted		WCSP
Euphorbia hunzikeri Subils	Accepted		WCSP
Euphorbia hurusawae Oudejans	Synonym		WCSP
Euphorbia hurusawae var. imaii (Hurus.) Oudejans	Synonym		WCSP
Euphorbia huttoniae N.E.Br.	Synonym		WCSP
Euphorbia hyberna L.	Accepted		WCSP
Euphorbia hyberna var. canuti (Parl.) Fiori	Synonym		WCSP
Euphorbia hyberna subsp. canuti (Parl.) Tutin	Synonym		WCSP
Euphorbia hyberna var. gibelliana (Peola) Fiori	Synonym		WCSP
Euphorbia hyberna subsp. gibelliana (Peola) Raffaelli	Synonym		WCSP
Euphorbia hyberna var. insularis (Boiss.) Fiori	Synonym		WCSP
Euphorbia hyberna subsp. insularis (Boiss.) Briq.	Synonym		WCSP
Euphorbia hydnorae E.Mey. ex Boiss.	Synonym		WCSP
Euphorbia hylonoma Hand.-Mazz.	Accepted		WCSP
Euphorbia hypericifolia L.	Accepted		WCSP
Euphorbia hypericifolia var. bracteolaris (Boiss.) Ewart	Synonym		WCSP
Euphorbia hypericifolia var. coimbatorensis Chandrab.	Synonym		WCSP
Euphorbia hypericifolia var. communis Engelm.	Synonym		WCSP
Euphorbia hypericifolia var. falciformis Klotzsch	Synonym		WCSP
Euphorbia hypericifolia var. hirsuta Torr.	Synonym		WCSP
Euphorbia hypericifolia var. maculata Klotzsch	Synonym		WCSP
Euphorbia hypericifolia var. pusilla Webb	Synonym		WCSP
Euphorbia hypogaea Marloth	Accepted		WCSP
Euphorbia hypoleuca (Prokh.) Rech.f.	Synonym		WCSP
Euphorbia hyrcana Grossh.	Accepted		WCSP
Euphorbia hyssopifolia L.	Accepted		WCSP
Euphorbia hyssopifolia var. blanchetii (Miq. ex Boiss.) Oudejans	Synonym		WCSP
Euphorbia hyssopifolia var. paraguayensis (Chodat) Oudejans	Synonym		WCSP
Euphorbia hyssopifolia var. pruinosa (Chodat) Oudejans	Synonym		WCSP
Euphorbia hyssopifolia var. pubescenticocca Christenh.	Synonym		WCSP
Euphorbia hyssopifolia var. pulchella (Boiss.) Oudejans	Synonym		WCSP
Euphorbia hyssopifolia var. uniflora (Chodat & Hassl.) Oudejans	Synonym		WCSP
Euphorbia hystrix Jacq.	Synonym		WCSP
Euphorbia iancannellii Bruyns	Accepted		WCSP
Euphorbia iberica Boiss.	Accepted		WCSP
Euphorbia iberica var. intermedia Boiss.	Synonym		WCSP
Euphorbia idzuensis Nakai ex Hurus.	Synonym		WCSP
Euphorbia iharanae Rauh	Accepted		WCSP
Euphorbia illirica Lam.	Accepted		WCSP
Euphorbia illirica subsp. semivillosa (Prokh.) Govaerts	Synonym		WCSP
Euphorbia iloitaii Powys & S.Carter	Unresolved		WCSP (in review)
Euphorbia imaii Hurus.	Synonym		WCSP
Euphorbia imaii f. denudata Hurus.	Synonym		WCSP
Euphorbia imbricata Vahl	Synonym		WCSP
Euphorbia imbricata E.A.Bruce [Illegitimate]	Synonym		WCSP
Euphorbia imbricata Sessé & Moc. [Illegitimate]	Synonym		WCSP
Euphorbia imerina Cremers	Accepted		WCSP
Euphorbia imitata N.E.Br.	Accepted		WCSP
Euphorbia immersa P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia imparispina S.Carter	Accepted		WCSP
Euphorbia imperfoliata Vis.	Synonym		WCSP
Euphorbia impervia A.Berger	Synonym		WCSP
Euphorbia implexa Stapf	Synonym		WCSP
Euphorbia impressa Chiov.	Accepted		WCSP
Euphorbia inaequalis N.E.Br.	Synonym		WCSP
Euphorbia inaequilatera Sond.	Accepted		WCSP
Euphorbia inaequilatera var. dentata (N.E.Br.) M.G.Gilbert	Synonym		WCSP
Euphorbia inaequilatera var. dentata N.E. Br.	Synonym		TRO
Euphorbia inaequilatera var. jemenica (Schweinf.) Oudejans	Synonym		WCSP
Euphorbia inaequilatera var. perennis N.E.Br.	Synonym		WCSP
Euphorbia inaequilatera var. spanothrix S.Carter	Synonym		WCSP
Euphorbia inaequispina N.E.Br.	Accepted		WCSP
Euphorbia inaguaensis Oudejans	Accepted		WCSP
Euphorbia inappendiculata Domin	Accepted		WCSP
Euphorbia inappendiculata var. queenslandica Domin	Synonym		WCSP
Euphorbia inarticulata Schweinf.	Accepted		WCSP
Euphorbia incana Schur	Synonym		WCSP
Euphorbia incerta Brandegee	Accepted		WCSP
Euphorbia incisa Engelm.	Synonym		WCSP
Euphorbia incisa var. mollis (Norton) L.C.Wheeler	Synonym		WCSP
Euphorbia inclinata Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia incompta Ces.	Synonym		WCSP
Euphorbia inconspicua Ball	Synonym		WCSP
Euphorbia inconstantia R.A.Dyer	Accepted		WCSP
Euphorbia inculta P.R.O.Bally	Accepted		WCSP
Euphorbia incurva N.E.Br.	Synonym		WCSP
Euphorbia indecora N.E.Br.	Accepted		WCSP
Euphorbia inderiensis Less. ex Kar. & Kir.	Accepted		WCSP
Euphorbia indica Lam.	Accepted		WCSP
Euphorbia indica var. angustifolia Boiss.	Synonym		WCSP
Euphorbia indica var. procumbens Pax	Synonym		WCSP
Euphorbia indistincta P.I.Forst.	Accepted		WCSP
Euphorbia indivisa (Engelm.) Tidestr.	Accepted		WCSP
Euphorbia indurescens L.C.Leach	Accepted		WCSP
Euphorbia inelegans N.E.Br. [Illegitimate]	Synonym		WCSP
Euphorbia inermis Pancic ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia inermis Mill.	Accepted		WCSP
Euphorbia inermis var. huttonae (N.E.Br.) A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia inermis var. laniglans N.E.Br.	Synonym		WCSP
Euphorbia infausta N.E.Br.	Synonym		WCSP
Euphorbia infernidialis V.W.Steinm.	Accepted		WCSP
Euphorbia infesta Pax	Synonym		WCSP
Euphorbia inflexa Urb. & Ekman	Synonym		WCSP
Euphorbia ingallsii (Small) Cory	Synonym		WCSP
Euphorbia ingens E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia ingenticapsa L.C.Leach	Accepted		WCSP
Euphorbia × ingezalahiana Ursch & Leandri	Accepted		WCSP
Euphorbia innocua L.C.Wheeler	Accepted		WCSP
Euphorbia inornata N.E.Br.	Accepted		WCSP
Euphorbia inornata (Dressler) Radcl.-Sm. [Illegitimate]	Synonym		WCSP
Euphorbia insarmentosa P.G.Mey.	Accepted		WCSP
Euphorbia insulae-europae Pax	Synonym		WCSP
Euphorbia insulana Vell.	Accepted		WCSP
Euphorbia insulana Müll. Arg.	Synonym		TRO
Euphorbia insulana var. insulana	Accepted		WCSP
Euphorbia insulana var. minor Müll.Arg.	Synonym		WCSP
Euphorbia insulana subsp. pilcomayensis Croizat	Synonym		WCSP
Euphorbia insulana var. pilcomayensis (Croizat) Oudejans	Accepted		WCSP
Euphorbia insulana var. tovarensis (Boiss.) Oudejans	Accepted		WCSP
Euphorbia insulana subsp. tovarensis (Boiss.) Croizat	Synonym		WCSP
Euphorbia insularis Boiss.	Accepted		WCSP
Euphorbia interaxillaris Fernald	Synonym		WCSP
Euphorbia intercedens Pax	Synonym		WCSP
Euphorbia × intercedens Podp. [Illegitimate]	Unresolved		WCSP
Euphorbia intermedia Bréb.	Synonym		WCSP
Euphorbia intermedia Hochst. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia intermixta S.Watson	Synonym		WCSP
Euphorbia intibucana Standl. & L.O. Williams ex Ant. Molina	Synonym		TRO
Euphorbia intisy Drake	Accepted		WCSP
Euphorbia intisy var. mainty Poiss.	Synonym		TRO
Euphorbia intricata S.Carter	Accepted		WCSP
Euphorbia inundata Torr. ex Chapm.	Accepted		WCSP
Euphorbia inundaticola L.C.Leach	Accepted		WCSP
Euphorbia invaginata Croizat	Accepted		WCSP
Euphorbia invenusta (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia invenusta var. angusta (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia involucrata (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia involucrata var. megastegia Boiss.	Synonym		WCSP
Euphorbia involuta Millsp.	Synonym		WCSP
Euphorbia ipecacuanhae L.	Accepted		WCSP
Euphorbia ipecacuanhae var. gracilis Boiss.	Synonym		WCSP
Euphorbia ipecacuanhae f. linearis (Moldenke) Fernald	Synonym		WCSP
Euphorbia ipecacuanhae var. portulacoides Boiss.	Synonym		WCSP
Euphorbia irgisensis Litv.	Accepted		WCSP
Euphorbia isacantha Pax	Accepted		WCSP
Euphorbia isalensis Leandri	Synonym		WCSP
Euphorbia isaloensis Drake	Accepted		WCSP
Euphorbia isatidifolia Lam.	Accepted		WCSP
Euphorbia isatis Pers.	Synonym		WCSP
Euphorbia isaurica M.S.Khan	Accepted		WCSP
Euphorbia isophylla Bornm.	Synonym		WCSP
Euphorbia ispahanica Boiss.	Synonym		WCSP
Euphorbia issykkulensis Prokh. [Invalid]	Synonym		WCSP
Euphorbia isthmia Täckh.	Synonym		WCSP
Euphorbia italica Salzm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia italica Lam.	Synonym		WCSP
Euphorbia italica G.Tineo [Illegitimate]	Synonym		WCSP
Euphorbia iteophylla Boiss.	Synonym		WCSP
Euphorbia itremensis Kimnach & Lavranos	Accepted		WCSP
Euphorbia ivanjohnstonii M.C.Johnst.	Accepted		WCSP
Euphorbia ixtlana Huft	Synonym		WCSP
Euphorbia × jablonskiana Polatschek	Accepted		WCSP
Euphorbia jablonskii V.W.Steinm.	Accepted		WCSP
Euphorbia jacquemontii Boiss.	Accepted		WCSP
Euphorbia jacquinii Fenzl ex Boiss.	Synonym		WCSP
Euphorbia jacquiniiflora Neumann	Synonym		WCSP
Euphorbia jacquiniiflora Hook.	Synonym		WCSP
Euphorbia jaegeriana Pax	Synonym		WCSP
Euphorbia jaliscensis B.L.Rob. & Greenm.	Accepted		WCSP
Euphorbia jaliscensis var. durangensis Millsp.	Synonym		WCSP
Euphorbia jamesonii Boiss.	Accepted		WCSP
Euphorbia jansenvillensis Nel	Accepted		WCSP
Euphorbia japonica Siebold ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia japygica Ten.	Synonym		WCSP
Euphorbia jaroslavii Poljakov [Illegitimate]	Synonym		WCSP
Euphorbia jasiewiczii (Chrtek & Krísa) Radcl.-Sm.	Synonym		WCSP
Euphorbia jasiewiczii (Chrtek & Křísa) Dubovik	Synonym		TRO
Euphorbia jatrophoides Pax	Accepted		WCSP
Euphorbia javanica Jungh.	Synonym		WCSP
Euphorbia jaxartica (Prokh.) Krylov	Synonym		WCSP
Euphorbia jaxartica Prokh.	Accepted		TRO
Euphorbia jejuna M.C.Johnst. & Warnock	Accepted		WCSP
Euphorbia jenisseiensis Baikov	Accepted		WCSP
Euphorbia jessonii Oudejans	Synonym		WCSP
Euphorbia jodhpurensis Blatt. & Hallb.	Accepted		WCSP
Euphorbia johannis S.Carter	Accepted		WCSP
Euphorbia johnsonii N.E.Br.	Synonym		WCSP
Euphorbia johnstonii Mayfield	Accepted		WCSP
Euphorbia jolkinii Boiss.	Accepted		WCSP
Euphorbia jolkinii f. insularis (Hurus.) Oudejans	Synonym		WCSP
Euphorbia jonesii Millsp.	Synonym		WCSP
Euphorbia josei Oudejans	Accepted		WCSP
Euphorbia jovetii Huguet	Synonym		WCSP
Euphorbia joyae P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia × jubacaphylla Svent.	Unresolved		TRO
Euphorbia × jubaeaphylla Svent.	Accepted		WCSP
Euphorbia jubata L.C.Leach	Accepted		WCSP
Euphorbia × jucula Prodán	Unresolved		WCSP
Euphorbia juglans Compton	Accepted		WCSP
Euphorbia juncea Aiton	Synonym		WCSP
Euphorbia junciformis Sessé & Moc.	Synonym		WCSP
Euphorbia juncoides (Haw.) Sweet	Synonym		WCSP
Euphorbia juniperifolia Rich. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia juttae Dinter	Accepted		WCSP
Euphorbia juvoklanti Pax	Accepted		WCSP
Euphorbia kabridarensis Thulin	Unresolved		WCSP (in review)
Euphorbia kaessneri (N.E.Br.) Bruyns [Illegitimate]	Synonym		WCSP
Euphorbia kaessneri Pax	Accepted		WCSP
Euphorbia kahirensis Raeusch.	Synonym		WCSP
Euphorbia kalaharica Marloth	Synonym		WCSP
Euphorbia kalbaensis Baikov & I.V.Khan	Accepted		WCSP
Euphorbia kaleniczenkii Czern. ex Trautv.	Synonym		TRO
Euphorbia kaleniczenkii var. nana Hurus.	Synonym		WCSP
Euphorbia kaleniczenkoi Czern.	Synonym		WCSP
Euphorbia kalisana S.Carter	Accepted		WCSP
Euphorbia kamerunica Pax	Accepted		WCSP
Euphorbia kamerunica var. barteri (N.E. Br.) A. Chev.	Synonym		TRO
Euphorbia kamponii Rauh & Petignat	Accepted		WCSP
Euphorbia kanalensis Boiss.	Accepted		WCSP
Euphorbia kanaorica Boiss.	Accepted		WCSP
Euphorbia kangdingensis W.T.Wang	Synonym		WCSP
Euphorbia kangdingensis var. puberula W.T.Wang	Synonym		WCSP
Euphorbia kansuensis Prokh.	Accepted		WCSP
Euphorbia kansui S.L.Liou ex S.B.Ho	Accepted		WCSP
Euphorbia kansui Liou	Synonym		TRO
Euphorbia kaokoensis (A.C.White, R.A.Dyer & B.Sloane) L.C.Leach	Accepted		WCSP
Euphorbia karibensis S.Carter	Accepted		WCSP
Euphorbia karoi Freyn	Synonym		WCSP
Euphorbia karrooensis (Boiss.) N.E.Br.	Accepted		WCSP
Euphorbia karwinskyi Boiss.	Synonym		WCSP
Euphorbia kaschgarica Regel	Synonym		WCSP
Euphorbia katrajensis Gage	Accepted		WCSP
Euphorbia katrajensis var. kasaragodensis V.J.Nair, Binojk. & R.Ansari	Synonym		WCSP
Euphorbia kazerouni Parsa	Synonym		WCSP
Euphorbia keithii R.A.Dyer	Accepted		WCSP
Euphorbia kelleri Pax	Accepted		WCSP
Euphorbia kemulariae Ter-Chatsch.	Synonym		WCSP
Euphorbia kerneri Huter ex A.Kern.	Accepted		WCSP
Euphorbia kerrii Craib	Synonym		WCSP
Euphorbia kerstingii Pax	Accepted		WCSP
Euphorbia khandallensis Blatt. & Hallb.	Accepted		WCSP
Euphorbia khasyana Boiss.	Accepted		WCSP
Euphorbia kibwezensis N.E.Br.	Synonym		WCSP
Euphorbia kilimandscharica Pax ex Engl.	Synonym		WCSP
Euphorbia kilwana N.E.Br.	Accepted		WCSP
Euphorbia kimberleyana (G.Will.) Bruyns	Accepted		WCSP
Euphorbia kimberleyensis B.G.Thomson	Accepted		WCSP
Euphorbia kimmerica Lipsky ex Grossh.	Accepted		WCSP
Euphorbia kingdon-wardii Binojk. & N.P.Balakr.	Accepted		WCSP
Euphorbia kirimzjulica Stepanov	Accepted		WCSP
Euphorbia kiritensis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia kirkii (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia kischenensis Vierh.	Accepted		WCSP
Euphorbia kitagawae (Hurus.) Kitag.	Accepted		WCSP
Euphorbia kitaibelii Klok. & Dubovik	Synonym		TRO
Euphorbia klokoviana Railyan	Synonym		WCSP
Euphorbia klokovii Dubovik	Synonym		WCSP
Euphorbia klotzschiana Miq.	Synonym		WCSP
Euphorbia klotzschii Oudejans	Accepted		WCSP
Euphorbia klotzschii var. argentina (Müll.Arg. ex Griseb.) Oudejans	Synonym		WCSP
Euphorbia klotzschii var. dentata (R.E.Fr.) Oudejans	Synonym		WCSP
Euphorbia klotzschii var. schizosepala (Engelm. ex Boiss.) Oudejans	Synonym		WCSP
Euphorbia knobelii Letty	Accepted		WCSP
Euphorbia knuthii Pax	Accepted		WCSP
Euphorbia koerneriana Allem & Irgang	Synonym		WCSP
Euphorbia komaroviana Prokh.	Synonym		WCSP
Euphorbia kondoi Rauh & Razaf.	Accepted		WCSP
Euphorbia kopetdaghensis Korovin ex Prokh. [Illegitimate]	Synonym		WCSP
Euphorbia kopetdaghi (Prokh.) Prokh.	Accepted		WCSP
Euphorbia korovinii Pavlov	Synonym		WCSP
Euphorbia korshinskyi Geltman	Accepted		WCSP
Euphorbia kotovii Klokov	Synonym		WCSP
Euphorbia kotschyana Fenzl	Accepted		WCSP
Euphorbia kouandenensis Beille ex A.Chev.	Accepted		WCSP
Euphorbia kozlovii Prokh.	Accepted		WCSP
Euphorbia kozlovii var. angustifolia S.Q.Zhou	Synonym		WCSP
Euphorbia kralickii Coss. ex Batt. & Trab.	Synonym		WCSP
Euphorbia kraussiana Bernh. ex Krauss	Accepted		WCSP
Euphorbia kraussiana var. erubescens (E. Mey. ex Boiss.) N.E. Br.	Synonym		TRO
Euphorbia kudrjaschevii (Pazij) Prokh.	Accepted		WCSP
Euphorbia kundelunguensis (Malaisse) Bruyns	Accepted		WCSP
Euphorbia kunzei Mart. ex Colla	Synonym		WCSP
Euphorbia kurdica Boiss.	Synonym		WCSP
Euphorbia kuriensis Vierh.	Accepted		WCSP
Euphorbia kurioca Bornm. [Illegitimate]	Synonym		WCSP
Euphorbia kurtzii Subils	Accepted		WCSP
Euphorbia kuwaleana O.Deg. & Sherff	Accepted		WCSP
Euphorbia kwebensis N.E.Br.	Synonym		WCSP
Euphorbia labatii Rauh & Bard.-Vauc.	Accepted		WCSP
Euphorbia labbei H.Lév.	Synonym		WCSP
Euphorbia lacei Craib	Accepted		WCSP
Euphorbia lacera Boiss.	Accepted		WCSP
Euphorbia laciniata Panigrahi	Accepted		WCSP
Euphorbia laciniata subsp. burmanica Panigrahi	Synonym		WCSP
Euphorbia lactea Haw.	Accepted		WCSP
Euphorbia lactea Roxb.	Synonym		WCSP
Euphorbia lactiflua Phil.	Accepted		WCSP
Euphorbia laeta B.Heyne ex Roth [Illegitimate]	Synonym		WCSP
Euphorbia laeta Aiton	Synonym		WCSP
Euphorbia laevigata Vahl [Illegitimate]	Synonym		WCSP
Euphorbia laevigata Lam.	Accepted		WCSP
Euphorbia lagascae Spruner ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia lagascae Spreng.	Accepted		WCSP
Euphorbia lagunensis Huft	Accepted		WCSP
Euphorbia lagunillarum Croizat	Accepted		WCSP
Euphorbia laikipiensis S.Carter	Accepted		WCSP
Euphorbia lamarckii Sweet	Accepted		WCSP
Euphorbia lamarckii var. berthelotii (Bolle ex Boiss.) Oudejans	Synonym		WCSP
Euphorbia lamarckii var. despoliata (Menezes) Oudejans	Synonym		WCSP
Euphorbia lamarckii f. latibracteata (G.Kunkel) Oudejans	Synonym		WCSP
Euphorbia lamarckii var. pseudodendroides (H.Lindb.) Oudejans	Synonym		WCSP
Euphorbia lamarckii subsp. regis-jubae (J.Gay) Oudejans	Synonym		WCSP
Euphorbia lambii Svent.	Synonym		WCSP
Euphorbia lamprocarpa (Prokh.) Prokh.	Accepted		WCSP
Euphorbia lanata Sieber ex Spreng.	Synonym		WCSP
Euphorbia lancasteriana Radcl.-Sm.	Accepted		WCSP
Euphorbia lanceolaria Wall. [Invalid]	Synonym		WCSP
Euphorbia lanceolata Larrañaga [Illegitimate]	Synonym		WCSP
Euphorbia lanceolata Phil. [Illegitimate]	Synonym		WCSP
Euphorbia lanceolata Liou [Illegitimate]	Synonym		WCSP
Euphorbia lanceolata Spreng.	Synonym		WCSP
Euphorbia lancifolia Schltdl.	Accepted		WCSP
Euphorbia lancifolia var. villicaulis Fernald	Synonym		WCSP
Euphorbia lanifera Haw. ex Loud. [Unplaced]	Unresolved		WCSP
Euphorbia lansingii (Millsp.) Brühl	Synonym		WCSP
Euphorbia lanuginosa Lam.	Synonym		WCSP
Euphorbia lanuginosa Thuill. [Illegitimate]	Synonym		WCSP
Euphorbia laredana Millsp.	Accepted		WCSP
Euphorbia larica Boiss.	Accepted		WCSP
Euphorbia laro Drake	Synonym		WCSP
Euphorbia larranagae Oudejans	Accepted		WCSP
Euphorbia lasiocarpa Klotzsch	Accepted		WCSP
Euphorbia lasiocarpa K.Koch [Illegitimate]	Synonym		WCSP
Euphorbia lasiocarpa var. subprostrata Boiss.	Synonym		WCSP
Euphorbia lasiocaula Boiss.	Synonym		WCSP
Euphorbia lasiocaula var. ibukiensis (Hurus.) T.Kuros. & H.Ohashi	Synonym		WCSP
Euphorbia lasiocaula var. maritima (H.Hara) S.Matsumoto & Konta	Synonym		WCSP
Euphorbia lasiocaula f. maritima (H.Hara) T.Kuros. & H.Ohashi	Synonym		WCSP
Euphorbia lasiocaula var. pseudolucorum Hurus.	Synonym		TRO
Euphorbia lata Engelm.	Accepted		WCSP
Euphorbia latazi Kunth	Synonym		WCSP
Euphorbia latazi var. glabra Steyerm.	Synonym		WCSP
Euphorbia latericolor Brandegee	Accepted		WCSP
Euphorbia lateriflora Jaub. & Spach [Illegitimate]	Synonym		WCSP
Euphorbia lateriflora Schumach.	Accepted		WCSP
Euphorbia lathyris Georgi [Illegitimate]	Synonym		WCSP
Euphorbia lathyris L.	Accepted		WCSP
Euphorbia lathyris var. minor Hook. & Arn.	Synonym		WCSP
Euphorbia latifolia Salzm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia latifolia C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia latifolia var. intermedia Boiss.	Synonym		WCSP
Euphorbia latimammillaris Croizat	Accepted		WCSP
Euphorbia laurentii De Wild.	Synonym		WCSP
Euphorbia laurifolia Juss. ex Lam.	Accepted		WCSP
Euphorbia lavicola S.Carter	Accepted		WCSP
Euphorbia lavranii L.C.Leach	Accepted		WCSP
Euphorbia lawsonii Binojk. & Dwarakan	Accepted		WCSP
Euphorbia laxa Drake	Unresolved		TRO
Euphorbia laxiflora Kuntze	Synonym		WCSP
Euphorbia leandriana Boiteau [Invalid]	Unresolved		WCSP
Euphorbia lecheoides Millsp.	Accepted		WCSP
Euphorbia lecheoides var. exumensis (Millsp.) Oudejans	Synonym		WCSP
Euphorbia lecheoides var. wilsonii (Millsp.) Oudejans	Synonym		WCSP
Euphorbia ledebourii Boiss.	Accepted		WCSP
Euphorbia ledermanniana Pax & K.Hoffm.	Accepted		WCSP
Euphorbia ledienii A.Berger	Accepted		WCSP
Euphorbia lehmanniana Pax	Synonym		WCSP
Euphorbia lehmbachii Pax	Synonym		WCSP
Euphorbia leiococca (Engelm.) Norton	Synonym		WCSP
Euphorbia leiosperma Sibth. & Sm.	Synonym		WCSP
Euphorbia leiosperma (Klotzsch & Garcke) Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia leistneri R.H.Archer	Accepted		WCSP
Euphorbia lemaireana Boiss.	Synonym		WCSP
Euphorbia lenensis Baikov	Accepted		WCSP
Euphorbia lenewtonii S.Carter	Accepted		WCSP
Euphorbia leonardii (D.G.Burch) Radcl.-Sm.	Accepted		WCSP
Euphorbia leoncroizatii Oudejans	Synonym		WCSP
Euphorbia leonensis N.E.Br.	Synonym		WCSP
Euphorbia leontopoda S.Carter	Accepted		WCSP
Euphorbia lepidocarpa Pax	Synonym		WCSP
Euphorbia leplus L.	Unresolved		TRO
Euphorbia leptalea Schauer	Synonym		WCSP
Euphorbia leptocaula Boiss.	Accepted		WCSP
Euphorbia leptocaula var. praecox Boiss.	Synonym		WCSP
Euphorbia leptocera Engelm. ex Boiss.	Synonym		WCSP
Euphorbia leptocera Engelm. ex Torr.	Synonym		TRO
Euphorbia leptocera var. crenulata (Engelm.) Boiss.	Synonym		WCSP
Euphorbia leptoclada Balf.f.	Accepted		WCSP
Euphorbia leptomyura Baill. ex Poiss. [Illegitimate]	Synonym		WCSP
Euphorbia leptophylla Vill.	Synonym		WCSP
Euphorbia leshumensis N.E.Br.	Synonym		WCSP
Euphorbia letestuana (Denis) Bruyns	Accepted		WCSP
Euphorbia letestui J.Raynal	Accepted		WCSP
Euphorbia letouzeyana (Malaisse) Bruyns	Accepted		WCSP
Euphorbia leucantha (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia leucocephala Lotsy	Accepted		WCSP
Euphorbia leucochlamys Chiov.	Accepted		WCSP
Euphorbia leucodendron Drake	Synonym		WCSP
Euphorbia leucodendron subsp. oncoclada (Drake) Rauh & Koutnik	Synonym		WCSP
Euphorbia leucoloma Raf.	Synonym		WCSP
Euphorbia leuconeura Boiss.	Accepted		WCSP
Euphorbia leucophylla Benth.	Accepted		WCSP
Euphorbia leucophylla subsp. comcaacorum V.W.Steinm. & Felger	Synonym		WCSP
Euphorbia leucotricha Boiss.	Synonym		WCSP
Euphorbia leviana Croizat	Synonym		WCSP
Euphorbia levis Poir.	Synonym		WCSP
Euphorbia levis var. imbricata Boiss.	Synonym		WCSP
Euphorbia libassii Lojac.	Synonym		WCSP
Euphorbia lignosa Marloth	Accepted		WCSP
Euphorbia ligularia Roxb. ex Buch.-Ham.	Synonym		WCSP
Euphorbia ligulata Chaub.	Synonym		WCSP
Euphorbia ligustrina Boiss.	Synonym		WCSP
Euphorbia liliputiana C.Wright ex Urb.	Synonym		WCSP
Euphorbia limaensis Oudejans	Accepted		WCSP
Euphorbia limpopoana L.C.Leach ex S.Carter	Accepted		WCSP
Euphorbia linaria Link	Synonym		WCSP
Euphorbia linarifolia Willd.	Synonym		WCSP
Euphorbia linariifolia Lam.	Synonym		WCSP
Euphorbia linarioides Poir.	Synonym		WCSP
Euphorbia lindeniana A.Rich.	Synonym		WCSP
Euphorbia lindenii (S.Carter) Bruyns	Accepted		WCSP
Euphorbia lindheimeriana Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia linearibracteata L.C.Leach	Accepted		WCSP
Euphorbia linearifolia Roth [Illegitimate]	Synonym		WCSP
Euphorbia linearifolia var. nallamalayana J.L.Ellis	Synonym		WCSP
Euphorbia linearifolium Millsp.	Unresolved		TRO
Euphorbia linearis Schrank [Illegitimate]	Synonym		WCSP
Euphorbia linearis B.Heyne ex Roth [Invalid]	Synonym		WCSP
Euphorbia linearis Retz.	Synonym		WCSP
Euphorbia linearis var. heterophylla Kuntze	Synonym		WCSP
Euphorbia lineata S.Watson	Accepted		WCSP
Euphorbia lingiana C.Shih	Accepted		WCSP
Euphorbia linguiformis McVaugh	Accepted		WCSP
Euphorbia linguiformis var. acutinadenia (McVaugh) Oudejans	Synonym		WCSP
Euphorbia lingulata Heuff.	Synonym		WCSP
Euphorbia linifolia Wall. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia linifolia Burm.f. [Illegitimate]	Synonym		WCSP
Euphorbia linifolia Vahl [Illegitimate]	Synonym		WCSP
Euphorbia linifolia Nath. ex L.	Synonym		WCSP
Euphorbia lioui C.Y.Wu & S.J.Ma	Accepted		WCSP
Euphorbia lipskyi (Prokh.) Prokh.	Accepted		WCSP
Euphorbia lissosperma S.Carter	Accepted		WCSP
Euphorbia literata Jacq.	Synonym		WCSP
Euphorbia litoralis Kunth	Synonym		WCSP
Euphorbia litoralis Noë ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia litoralis Sessé & Moc. [Illegitimate]	Synonym		WCSP
Euphorbia littoralis Raf. [Unplaced]	Unresolved		WCSP
Euphorbia littorea Miq. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia litwinowii Prokh. [Illegitimate]	Synonym		WCSP
Euphorbia liukiuensis Hayata	Accepted		WCSP
Euphorbia livida E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia lividiflora L.C.Leach	Accepted		WCSP
Euphorbia loandensis N.E.Br.	Accepted		WCSP
Euphorbia lockhartii Steud. [Invalid]	Synonym		WCSP
Euphorbia lohaensis Baill.	Synonym		WCSP
Euphorbia loiseleurii (Rouy) Prain	Synonym		WCSP
Euphorbia lombardensis Nel	Synonym		WCSP
Euphorbia lomelii V.W.Steinm.	Accepted		WCSP
Euphorbia × lomi Rauh	Accepted		WCSP
Euphorbia longibracteata Pax [Illegitimate]	Synonym		WCSP
Euphorbia longibracteata DC.	Synonym		WCSP
Euphorbia longicorniculata Kitam.	Synonym		WCSP
Euphorbia longicornuta Pax ex Engl. [Illegitimate]	Synonym		WCSP
Euphorbia longicornuta S.Watson	Accepted		WCSP
Euphorbia longicornuta var. pubescens N.E.Br.	Synonym		WCSP
Euphorbia longicruris Scheele	Accepted		WCSP
Euphorbia longifolia Lam.	Synonym		WCSP
Euphorbia longifolia Baill. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia longifolia Gueldenst. [Invalid]	Synonym		WCSP
Euphorbia longifolia D.Don [Illegitimate]	Synonym		WCSP
Euphorbia longifolia var. canariensis (Boiss.) Oudejans	Synonym		WCSP
Euphorbia longinsulicola S.R.Hill	Accepted		WCSP
Euphorbia longipetiolata Pax & K.Hoffm.	Synonym		WCSP
Euphorbia longipetiolata M.E.Jones [Illegitimate]	Synonym		WCSP
Euphorbia longipila Rusby	Synonym		WCSP
Euphorbia longiradiata Lapeyr.	Synonym		WCSP
Euphorbia longiramosa S.Watson	Synonym		WCSP
Euphorbia longispina Chiov.	Accepted		WCSP
Euphorbia longistyla Boiss.	Accepted		WCSP
Euphorbia longituberculosa Hochst. ex Boiss.	Accepted		WCSP
Euphorbia lophiosperma S.Carter	Accepted		WCSP
Euphorbia lophogona Lam.	Accepted		WCSP
Euphorbia lophogona var. lophogona	Accepted		WCSP
Euphorbia lorentii Hochst.	Synonym		WCSP
Euphorbia lorentzii Müll.Arg.	Accepted		WCSP
Euphorbia loreyi Jord.	Synonym		WCSP
Euphorbia loricata Lam.	Accepted		WCSP
Euphorbia lorifolia (A.Gray ex H.Mann) Hillebr.	Synonym		WCSP
Euphorbia lorifolia var. gracilis Rock	Synonym		WCSP
Euphorbia lottiae V.W.Steinm.	Accepted		WCSP
Euphorbia louisii J.Thiébaut	Synonym		WCSP
Euphorbia louwii L.C.Leach	Accepted		WCSP
Euphorbia luapulana L.C.Leach	Accepted		WCSP
Euphorbia lucida Waldst. & Kit.	Accepted		WCSP
Euphorbia lucida var. androsaemifolia (Haw.) Schur	Synonym		WCSP
Euphorbia lucida f. angustifolia (Tausch) Slavík	Synonym		WCSP
Euphorbia lucida var. angustifolia Tausch	Synonym		WCSP
Euphorbia lucida var. esulolucida Andrae	Synonym		WCSP
Euphorbia lucida var. leiocarpa Tausch	Synonym		WCSP
Euphorbia lucida f. leiocarpa (Tausch) Slavík	Synonym		WCSP
Euphorbia lucida var. salicifolia Wimm. & Grab.	Synonym		WCSP
Euphorbia lucidissima H.Lév. & Vaniot	Unresolved		WCSP
Euphorbia lucii-smithii B.L.Rob. & Greenm.	Accepted		WCSP
Euphorbia lucorum Rupr.	Accepted		WCSP
Euphorbia lucorum var. glabrata Maxim.	Synonym		WCSP
Euphorbia lucorum f. glabrata (Maxim.) Hurus.	Synonym		WCSP
Euphorbia lucorum f. latifolia Hurus.	Synonym		WCSP
Euphorbia lucorum var. parvifolia H.L.Yang	Synonym		WCSP
Euphorbia lucorum var. simplicior Rupr.	Synonym		WCSP
Euphorbia ludoviciana Raf.	Accepted		WCSP
Euphorbia lugardae (N.E.Br.) Bruyns	Accepted		WCSP
Euphorbia lugubris Chabert	Synonym		WCSP
Euphorbia lukoseana S.Carter	Accepted		WCSP
Euphorbia lumbricalis L.C.Leach	Accepted		WCSP
Euphorbia lundelliana Croizat	Accepted		WCSP
Euphorbia lunulata Bunge	Synonym		WCSP
Euphorbia lunulata var. obtusifolia Hurus.	Synonym		WCSP
Euphorbia lupatensis N.E.Br.	Accepted		WCSP
Euphorbia lupulina Boiss.	Synonym		WCSP
Euphorbia lurida Engelm.	Accepted		WCSP
Euphorbia lurida var. pringlei Norton	Synonym		WCSP
Euphorbia lusitanica Steud.	Synonym		WCSP
Euphorbia lutea Alam. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia luteola Kralik	Synonym		WCSP
Euphorbia luteoviridis D.G.Long	Accepted		WCSP
Euphorbia lutescens Ledeb.	Synonym		WCSP
Euphorbia lutescens C.A. Mey.	Synonym		TRO
Euphorbia luticola Hand.-Mazz.	Synonym		WCSP
Euphorbia lutosa S.Carter	Accepted		WCSP
Euphorbia lutulenta (Croizat) Oudejans	Accepted		WCSP
Euphorbia lutzenbergeriana Croizat	Synonym		WCSP
Euphorbia luzoniensis Merr.	Accepted		WCSP
Euphorbia lycia Boiss.	Synonym		WCSP
Euphorbia lycioides Boiss.	Accepted		WCSP
Euphorbia lyciopsis Pax	Synonym		WCSP
Euphorbia lydenburgensis Schweick. & Letty	Accepted		WCSP
Euphorbia × lyttoniana Dexter [Unplaced]	Unresolved		WCSP
Euphorbia maackii Meinsh.	Synonym		WCSP
Euphorbia macella N.E.Br.	Accepted		WCSP
Euphorbia macgillivrayi Boiss.	Accepted		WCSP
Euphorbia macgillivrayi var. filipes (Benth.) Domin	Synonym		WCSP
Euphorbia macgillivrayi var. micradenia (Boiss.) Domin	Synonym		WCSP
Euphorbia macgillivrayi var. pseudoserrulata Domin	Synonym		WCSP
Euphorbia macgillivrayi var. yarrabensis Domin	Synonym		WCSP
Euphorbia machrisiae Steyerm.	Accepted		WCSP
Euphorbia × macinensis Prodán	Accepted		WCSP
Euphorbia maconochieana B.G.Thomson	Accepted		WCSP
Euphorbia macowanii N.E.Br.	Synonym		WCSP
Euphorbia macra Hiern	Accepted		WCSP
Euphorbia macraulonia Phil.	Accepted		WCSP
Euphorbia macrocarpa Boiss. & Buhse	Accepted		WCSP
Euphorbia macroceras Fisch. & C.A.Mey.	Accepted		WCSP
Euphorbia macroclada Boiss.	Accepted		WCSP
Euphorbia macroclada var. aceras Hand.-Mazz.	Synonym		WCSP
Euphorbia macroglypha Lem.	Accepted		WCSP
Euphorbia macrophylla Pax	Accepted		WCSP
Euphorbia macropodoides B.L.Rob. & Greenm.	Accepted		WCSP
Euphorbia macropus (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia macrorrhiza C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia macrostegia Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia macrostegia var. pauciradiata Bornm.	Synonym		WCSP
Euphorbia maculata L.	Accepted		WCSP
Euphorbia maculata Lechl. ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia maculata var. detonsa Engelm. ex Boiss.	Synonym		WCSP
Euphorbia maculata var. parvula Riddell	Synonym		WCSP
Euphorbia macvaughii Carvajal & Lomelí	Accepted		WCSP
Euphorbia madagascariensis Comm. ex Lam. [Invalid]	Synonym		WCSP
Euphorbia maddenii Boiss.	Accepted		WCSP
Euphorbia madinahensis Fayed & Al-Zahrani	Accepted		WCSP
Euphorbia mafingensis (Hargr.) Bruyns	Accepted		WCSP
Euphorbia magdalenae Benth.	Accepted		WCSP
Euphorbia maglicensis Rohlena	Synonym		WCSP
Euphorbia magnicapsula S.Carter	Accepted		WCSP
Euphorbia magnidens Haw. ex Salm.-Dyck	Synonym		WCSP
Euphorbia magnifica (E.A.Bruce) Bruyns	Accepted		WCSP
Euphorbia magnimamma Haw. ex Loud. [Unplaced]	Unresolved		WCSP
Euphorbia mahabobokensis Rauh	Accepted		WCSP
Euphorbia mahafalensis Denis	Accepted		WCSP
Euphorbia mahafalensis var. xanthadenia (Denis) Leandri	Accepted		WCSP
Euphorbia mainiana Poiss.	Synonym		WCSP
Euphorbia mainty Denis ex Leandri	Accepted		WCSP
Euphorbia mairei H.Lév.	Synonym		WCSP
Euphorbia mairei var. luteociliata W.T.Wang	Synonym		WCSP
Euphorbia major (Pax) Bruyns	Accepted		WCSP
Euphorbia makallensis S.Carter	Accepted		WCSP
Euphorbia makinoi Hayata	Accepted		WCSP
Euphorbia malaca (Small) Little	Synonym		WCSP
Euphorbia malachophylla Clarke	Synonym		WCSP
Euphorbia malacitana Pau	Synonym		WCSP
Euphorbia × malahidensis Radcl.-Sm. [Illegitimate]	Synonym		WCSP
Euphorbia maleevii Tamamsch.	Synonym		WCSP
Euphorbia maleolens E.Phillips	Accepted		WCSP
Euphorbia malevola L.C.Leach	Accepted		WCSP
Euphorbia malevola subsp. bechuanica L.C.Leach	Synonym		WCSP
Euphorbia malleata Boiss.	Accepted		WCSP
Euphorbia malurensis Rech.f.	Accepted		WCSP
Euphorbia malvana Maire	Accepted		WCSP
Euphorbia mamfwensis (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia mamillosa Lem.	Synonym		WCSP
Euphorbia mammillaris L.	Accepted		WCSP
Euphorbia mammillaris Haw.	Synonym		TRO
Euphorbia mammilosa Lem.	Synonym		TRO
Euphorbia mananarensis Leandri [Unplaced]	Unresolved		WCSP
Euphorbia manca A.Nelson	Synonym		WCSP
Euphorbia mancinella Baill.	Synonym		WCSP
Euphorbia mandoniana Boiss.	Synonym		WCSP
Euphorbia mandrariensis Drake	Unresolved		TRO
Euphorbia mandravioky Leandri	Accepted		WCSP
Euphorbia mandshurica Maxim.	Synonym		WCSP
Euphorbia mangelsdorffii Rauh	Accepted		WCSP
Euphorbia mangletii Urb.	Synonym		WCSP
Euphorbia mangokyensis Denis	Accepted		WCSP
Euphorbia mangorensis Leandri	Accepted		WCSP
Euphorbia marayensis Subils	Accepted		WCSP
Euphorbia maresii Knoche	Accepted		WCSP
Euphorbia maresii subsp. balearica (Willk.) Malag.	Accepted		WCSP
Euphorbia maresii subsp. balearica (Willk.) Malag. ex J. Molero et al.	Synonym		TRO
Euphorbia maresii subsp. maresii	Accepted		WCSP
Euphorbia margalidiana Kuhbier & Lewej.	Accepted		WCSP
Euphorbia margaretae S.Carter	Accepted		WCSP
Euphorbia marginata Pursh	Accepted		WCSP
Euphorbia marginata Kunth [Illegitimate]	Synonym		WCSP
Euphorbia marginata var. uloleuca Engelm. & A.Gray	Synonym		WCSP
Euphorbia mariae Tamamsch.	Synonym		WCSP
Euphorbia marianoi Oudejans	Synonym		WCSP
Euphorbia marilandica Greene	Synonym		WCSP
Euphorbia mariolensis Rouy	Synonym		WCSP
Euphorbia maritae Rauh	Accepted		WCSP
Euphorbia maritima Nutt.	Synonym		WCSP
Euphorbia maritima Willd. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia marlothiana N.E.Br.	Accepted		WCSP
Euphorbia marlothii Pax	Synonym		WCSP
Euphorbia × marreroi Molero & Rovira	Accepted		WCSP
Euphorbia marrupana Bruyns	Accepted		WCSP
Euphorbia marsabitensis S.Carter	Accepted		WCSP
Euphorbia marschalliana Boiss.	Accepted		WCSP
Euphorbia marschalliana subsp. armena (Prokh.) Oudejans	Accepted		WCSP
Euphorbia marschalliana subsp. marschalliana	Accepted		WCSP
Euphorbia marschalliana subsp. woronowii (Grossh.) Prokh.	Accepted		WCSP
Euphorbia martinae Rauh	Accepted		WCSP
Euphorbia × martinii Rouy	Accepted		WCSP
Euphorbia martiusiana Steud.	Synonym		WCSP
Euphorbia maryrichardsiae G.Will.	Unresolved		WCSP (in review)
Euphorbia masafuerae Phil.	Synonym		WCSP
Euphorbia masirahensis Ghaz.	Accepted		WCSP
Euphorbia massiliensis DC.	Synonym		WCSP
Euphorbia matabelensis Pax	Accepted		WCSP
Euphorbia matritensis Boiss.	Accepted		WCSP
Euphorbia mauritanica Webb ex J.Gay [Invalid]	Synonym		WCSP
Euphorbia mauritanica L.	Accepted		WCSP
Euphorbia mauritanica var. corallothamnus (Dinter) A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia mauritanica var. foetens A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia mauritanica var. lignosa A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia mauritanica var. minor A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia mauritanica var. namaquensis N.E.Br.	Synonym		WCSP
Euphorbia mayana Millsp.	Synonym		WCSP
Euphorbia maysillesii McVaugh	Accepted		WCSP
Euphorbia mayuranathanii Croizat	Accepted		WCSP
Euphorbia mazarronensis Esteve	Synonym		WCSP
Euphorbia mazatlamensis Oudejans	Synonym		WCSP
Euphorbia mazicum Emb. & Maire	Accepted		WCSP
Euphorbia mbaluensis Pax	Synonym		WCSP
Euphorbia mcvaughiana M.C.Johnst.	Accepted		WCSP
Euphorbia media N.E.Br.	Synonym		WCSP
Euphorbia media var. bashawei N.E.Br.	Synonym		WCSP
Euphorbia medicaginea Boiss.	Accepted		WCSP
Euphorbia medicaginea subsp. arsenariensis (Batt.) Batt.	Synonym		WCSP
Euphorbia medicaginea var. arsenariensis Batt.	Synonym		WCSP
Euphorbia medicaginea var. oblongifolia Ball	Synonym		WCSP
Euphorbia medusae Panz.	Synonym		WCSP
Euphorbia meenae S.Carter	Accepted		WCSP
Euphorbia megalantha Boiss.	Synonym		WCSP
Euphorbia megalantha var. denticulata Boiss.	Synonym		WCSP
Euphorbia megalantha var. gracilis Boiss.	Synonym		WCSP
Euphorbia megalantha var. hirtiflora Boiss.	Synonym		WCSP
Euphorbia megalatlantica Ball	Accepted		WCSP
Euphorbia megalocarpa Rech.f.	Accepted		WCSP
Euphorbia megistopoda Diels	Synonym		WCSP
Euphorbia mehadiensis Kit.	Synonym		WCSP
Euphorbia melanacantha Drake	Synonym		WCSP
Euphorbia melanadenia Torr. & A.Gray	Accepted		WCSP
Euphorbia melanadenia var. subinappendiculata Engelm.	Synonym		WCSP
Euphorbia melanocarpa Boiss.	Accepted		WCSP
Euphorbia melanohydrata Nel	Accepted		WCSP
Euphorbia melanosticta E.Mey. ex Boiss.	Synonym		WCSP
Euphorbia melapetala Gasp. ex Guss.	Synonym		WCSP
Euphorbia melapetala var. leiocarpa Guss. ex Boiss.	Synonym		WCSP
Euphorbia melillensis Sennen & Mauricio [Illegitimate]	Synonym		WCSP
Euphorbia melitensis Parl.	Accepted		WCSP
Euphorbia mellifera Seub. [Illegitimate]	Synonym		WCSP
Euphorbia mellifera Aiton	Accepted		WCSP
Euphorbia mellifera var. canariensis Boiss.	Synonym		WCSP
Euphorbia meloformis Aiton	Accepted		WCSP
Euphorbia meloformis f. falsa (N.E.Br.) Marx	Synonym		WCSP
Euphorbia meloformis f. magna R.A.Dyer ex G.Marx	Synonym		WCSP
Euphorbia meloformis subsp. meloformis	Accepted		WCSP
Euphorbia meloformis subsp. valida (N.E.Br.) G.D.Rowley	Accepted		WCSP
Euphorbia meloniformis Lem. [Illegitimate]	Synonym		WCSP
Euphorbia membranacea Pax	Synonym		WCSP
Euphorbia memoralis R.A.Dyer	Accepted		WCSP
Euphorbia mendax Maire & Wilczek	Synonym		WCSP
Euphorbia mendezii Boiss.	Accepted		WCSP
Euphorbia menelikii Pax	Synonym		WCSP
Euphorbia mercurialina Michx.	Accepted		WCSP
Euphorbia mercurialis Pers.	Synonym		WCSP
Euphorbia meridensis Pittier	Accepted		WCSP
Euphorbia meridionalis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia merkeri N.E.Br.	Synonym		WCSP
Euphorbia mertonii Fosberg	Accepted		WCSP
Euphorbia mesembryanthemifolia Jacq.	Accepted		WCSP
Euphorbia mesembryanthemifolia var. flexuosa (Kunth) Oudejans	Synonym		WCSP
Euphorbia mesembryanthemifolia f. florida (Millsp.) Oudejans	Synonym		WCSP
Euphorbia mesembryanthemifolia var. ramosissima (Millsp.) Oudejans	Synonym		WCSP
Euphorbia mesembryanthemifolia f. reclinata (Millsp.) Oudejans	Synonym		WCSP
Euphorbia mesembryanthemifolia f. seminuda (Millsp.) Oudejans	Synonym		WCSP
Euphorbia mesopotamica M.S.Khan	Synonym		WCSP
Euphorbia messeniaca Heldr. ex Halácsy [Illegitimate]	Synonym		WCSP
Euphorbia meuleniana O.Schwartz	Accepted		WCSP
Euphorbia meuselii Geltman	Synonym		WCSP
Euphorbia mexiae Standl.	Accepted		WCSP
Euphorbia mexicana (Engelm.) Norton	Synonym		WCSP
Euphorbia meyeniana Klotzsch	Accepted		WCSP
Euphorbia meyeniana var. viscidula Boiss.	Synonym		WCSP
Euphorbia meyeri Nel [Illegitimate]	Synonym		WCSP
Euphorbia meyeri Steud.	Synonym		WCSP
Euphorbia meyeri Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia meyeriana Galushko	Accepted		WCSP
Euphorbia micans Scheele	Synonym		WCSP
Euphorbia michaelii Thulin	Unresolved		WCSP (in review)
Euphorbia micracantha Boiss.	Accepted		WCSP
Euphorbia micractina Boiss.	Accepted		WCSP
Euphorbia micractina var. tangutica (Prokh.) W.T.Wang	Synonym		WCSP
Euphorbia micradenia Boiss.	Accepted		WCSP
Euphorbia micrantha Stephan ex Willd.	Synonym		WCSP
Euphorbia microappendiculata Lotsy	Synonym		WCSP
Euphorbia microcarpa (Prokh.) Krylov	Accepted		WCSP
Euphorbia microcephala Boiss.	Accepted		WCSP
Euphorbia microclada Urb.	Synonym		WCSP
Euphorbia micromera Boiss. ex Engelm.	Accepted		WCSP
Euphorbia microphylla B.Heyne ex Roth [Illegitimate]	Synonym		WCSP
Euphorbia microphylla Lam.	Synonym		WCSP
Euphorbia microsciadia Boiss.	Accepted		WCSP
Euphorbia microsperma (Murb.) K.Malý	Synonym		WCSP
Euphorbia microsphaera Boiss.	Accepted		WCSP
Euphorbia migiurtinorum Chiov.	Accepted		WCSP
Euphorbia milii Des Moul.	Accepted		WCSP
Euphorbia milii var. bevilaniensis (Croizat) Ursch & Leandri	Accepted		WCSP
Euphorbia milii var. bosseri Rauh	Synonym		WCSP
Euphorbia milii var. hislopii (N.E.Br.) Ursch & Leandri	Accepted		WCSP
Euphorbia milii var. hislopii (N.E. Br.) Leandri	Synonym		TRO
Euphorbia milii f. lutea Leandri	Synonym		WCSP
Euphorbia milii var. milii	Accepted		WCSP
Euphorbia milii f. platyacantha (Drake) Leandri	Synonym		WCSP
Euphorbia milii var. splendens (Bojer ex Hook.) Ursch & Leandri	Accepted		WCSP
Euphorbia millotii Ursch & Leandri	Accepted		WCSP
Euphorbia millspaughii V.W.Steinm. & P.E.Berry	Accepted		WCSP
Euphorbia minbuensis Gage	Accepted		WCSP
Euphorbia minima (Haw.) Mart.	Synonym		WCSP
Euphorbia minuta Loscos & J.Pardo	Accepted		WCSP
Euphorbia minuta Phil. [Illegitimate]	Synonym		WCSP
Euphorbia minutiflora N.E.Br.	Synonym		WCSP
Euphorbia minutifolia Boiss.	Accepted		WCSP
Euphorbia minutula Boiss.	Accepted		WCSP
Euphorbia minxianensis W.T.Wang	Synonym		WCSP
Euphorbia mira L.C.Leach	Accepted		WCSP
Euphorbia miricornis Maire & Wilczek	Synonym		WCSP
Euphorbia miscella L.C.Leach	Accepted		WCSP
Euphorbia misella S.Watson	Accepted		WCSP
Euphorbia misera Benth.	Accepted		WCSP
Euphorbia missouriensis (Norton) Small	Synonym		WCSP
Euphorbia missurica Raf.	Accepted		WCSP
Euphorbia missurica var. calcicola (Shinners) Waterf.	Synonym		WCSP
Euphorbia missurica var. calcicola (Shinners) Warnock & M.C. Johnst.	Synonym		TRO
Euphorbia missurica var. intermedia (Engelm.) L.C.Wheeler	Synonym		WCSP
Euphorbia missurica var. petaloidea (Engelm.) Dorn	Synonym		WCSP
Euphorbia mitchelliana Boiss.	Accepted		WCSP
Euphorbia mitchelliana var. cairnsiana Domin	Synonym		WCSP
Euphorbia mitchelliana var. dietrichiae Domin	Synonym		WCSP
Euphorbia mitchelliana var. filifolia Domin	Synonym		WCSP
Euphorbia mitchelliana var. glauca Benth.	Synonym		WCSP
Euphorbia mitchelliana var. hirta Boiss.	Synonym		WCSP
Euphorbia mitchelliana var. oblongifolia Boiss.	Synonym		WCSP
Euphorbia mitchelliana var. obtusifolia Domin	Synonym		WCSP
Euphorbia mitchelliana var. stenophylla Benth.	Synonym		WCSP
Euphorbia mitis Pax	Synonym		WCSP
Euphorbia mitriformis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia × mitsimbinensis Ursch & Leandri [Unplaced]	Unresolved		WCSP
Euphorbia mixta N.E.Br.	Accepted		WCSP
Euphorbia mlanjeana L.C.Leach	Accepted		WCSP
Euphorbia mocinoi Oudejans	Synonym		WCSP
Euphorbia modesta Boiss.	Synonym		WCSP
Euphorbia moehringioides Pax	Accepted		WCSP
Euphorbia moenchiana Steud. [Unplaced]	Unresolved		WCSP
Euphorbia mohammerensis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia mollis C.C.Gmel.	Synonym		WCSP
Euphorbia monacantha Pax	Accepted		WCSP
Euphorbia monadenioides M.G.Gilbert	Accepted		WCSP
Euphorbia monantha C.Wright ex Boiss.	Accepted		WCSP
Euphorbia monchiquensis Franco & P.Silva	Synonym		WCSP
Euphorbia monensis (Millsp.) Urb.	Synonym		WCSP
Euphorbia mongolica (Prokh.) Prokh.	Accepted		WCSP
Euphorbia monocephala Pax	Synonym		WCSP
Euphorbia monocephala Baker ex Denis [Illegitimate]	Synonym		WCSP
Euphorbia monocyathium (Prokh.) Prokh.	Accepted		WCSP
Euphorbia monostyla Prokh.	Accepted		WCSP
Euphorbia montana Engelm. [Illegitimate]	Synonym		WCSP
Euphorbia montana Raf. [Unplaced]	Unresolved		WCSP
Euphorbia montana var. robusta Engelm. [Illegitimate]	Synonym		WCSP
Euphorbia monteiroi Hook.	Accepted		WCSP
Euphorbia monteiroi subsp. monteiroi	Accepted		WCSP
Euphorbia montenegrina (Bald.) K.Malý	Accepted		WCSP
Euphorbia montereyana Millsp.	Synonym		WCSP
Euphorbia montevidensis Klotzsch ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia monticola Hochst. ex A.Rich. [Illegitimate]	Synonym		WCSP
Euphorbia monticola Boiss.	Synonym		WCSP
Euphorbia moratii Rauh	Accepted		WCSP
Euphorbia morinii A.Berger	Synonym		WCSP
Euphorbia morisoniana Klotzsch	Synonym		WCSP
Euphorbia mosaica P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia mosana Lej.	Synonym		WCSP
Euphorbia mossambicensis (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia mossambicensis var. fischeri (Pax) N.E.Br.	Synonym		WCSP
Euphorbia mossambicensis var. nyasica N.E.Br.	Synonym		WCSP
Euphorbia mossamedensis N.E.Br.	Accepted		WCSP
Euphorbia mozambicensis Klotzsch	Unresolved		TRO
Euphorbia mucronata Lam.	Synonym		WCSP
Euphorbia mucronata Lapeyr. [Illegitimate]	Synonym		WCSP
Euphorbia mucronata Clarke [Illegitimate]	Synonym		WCSP
Euphorbia mucronulata (Prokh.) Pavlov	Accepted		WCSP
Euphorbia muelleri Boiss.	Accepted		WCSP
Euphorbia muirii N.E.Br.	Accepted		WCSP
Euphorbia mulemae Rendle	Synonym		WCSP
Euphorbia multicaulis Thuill.	Synonym		WCSP
Euphorbia multicaulis Engelm. [Illegitimate]	Synonym		WCSP
Euphorbia multiceps A.Berger	Accepted		WCSP
Euphorbia multiclava P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia multicorymbosa (Haw.) Sweet	Synonym		WCSP
Euphorbia multifida N.E.Br.	Accepted		WCSP
Euphorbia multiflora Willd. ex Klotzsch [Illegitimate]	Synonym		WCSP
Euphorbia multifolia A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia multifoliosa M.E.Jones	Synonym		WCSP
Euphorbia multiformis Gaudich. ex Hook. & Arn.	Accepted		WCSP
Euphorbia multiformis Schur [Illegitimate]	Synonym		WCSP
Euphorbia multiformis var. celastroides A.Gray	Synonym		WCSP
Euphorbia multiformis var. haleakalana Sherff	Synonym		WCSP
Euphorbia multiformis var. kaalana Sherff	Synonym		WCSP
Euphorbia multiformis var. kapuleiensis O.Deg. & Sherff	Synonym		WCSP
Euphorbia multiformis var. lorifolia A.Gray ex H.Mann	Synonym		WCSP
Euphorbia multiformis var. manoana Sherff	Synonym		WCSP
Euphorbia multiformis var. microphylla Boiss.	Synonym		WCSP
Euphorbia multiformis var. mohihiensis Sherff	Synonym		WCSP
Euphorbia multiformis var. multiformis	Synonym		WCSP
Euphorbia multiformis var. perdita Sherff	Synonym		WCSP
Euphorbia multiformis var. sparsiflora (A.Heller) Sherff	Synonym		WCSP
Euphorbia multiformis var. tenuior A.Gray ex H.Mann	Synonym		WCSP
Euphorbia multiformis var. tomentella Boiss.	Synonym		WCSP
Euphorbia multifurcata Rech.f., Aellen & Esfand.	Synonym		WCSP
Euphorbia multinodis Urb.	Accepted		WCSP
Euphorbia multiradiata Pax & K.Hoffm.	Synonym		WCSP
Euphorbia multiramosa Nel	Accepted		WCSP
Euphorbia multiseta Benth.	Accepted		WCSP
Euphorbia mundii sensu R. A. Dyer non N. E. Br.	Synonym		TRO
Euphorbia mundtii N.E.Br.	Accepted		WCSP
Euphorbia munizii Borhidi	Accepted		WCSP
Euphorbia muraltioides N.E.Br.	Accepted		WCSP
Euphorbia muricata Thunb.	Accepted		WCSP
Euphorbia muricata M.Bieb.	Synonym		WCSP
Euphorbia muricata var. wilhelmsiana K.Koch	Synonym		WCSP
Euphorbia murielii N.E.Br.	Synonym		WCSP
Euphorbia murrayana J.M.Black	Synonym		WCSP
Euphorbia muscicola Fernald	Accepted		WCSP
Euphorbia muscosa Ten. [Illegitimate]	Synonym		WCSP
Euphorbia musilii Velen.	Accepted		WCSP
Euphorbia mwinilungensis L.C.Leach	Accepted		WCSP
Euphorbia myrioclada S.Carter	Accepted		WCSP
Euphorbia myrsinites Pall. ex Ledeb. [Illegitimate]	Synonym		WCSP
Euphorbia myrsinites L.	Accepted		WCSP
Euphorbia myrsinites subsp. litardierei Font Quer & Garcias Font	Synonym		WCSP
Euphorbia myrsinites subsp. myrsinites	Accepted		WCSP
Euphorbia myrsinites subsp. pontica (Prokh.) R.Turner	Synonym		WCSP
Euphorbia myrsinites subsp. rechingeri (Greuter) Aldén	Accepted		WCSP
Euphorbia myrtifolia (L.) Lam. [Illegitimate]	Synonym		WCSP
Euphorbia myrtillifolia L.	Accepted		WCSP
Euphorbia myrtilloides Schltdl. ex Klotzsch & Garcke	Synonym		WCSP
Euphorbia myrtoides Boiss.	Accepted		WCSP
Euphorbia nagleri (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia nagleri var. baliensis Boiss.	Synonym		WCSP
Euphorbia nakaiana H.Lév.	Synonym		WCSP
Euphorbia nakaii Hurus.	Synonym		WCSP
Euphorbia nakaii f. caespitosa Hurus.	Synonym		WCSP
Euphorbia nakaii var. hondoensis Hurus.	Synonym		WCSP
Euphorbia nakaii f. littoralis Hurus.	Synonym		WCSP
Euphorbia namaquensis N.E.Br.	Synonym		WCSP
Euphorbia namibensis Marloth	Accepted		WCSP
Euphorbia namuliensis Bruyns	Accepted		WCSP
Euphorbia namuskluftensis L.C.Leach	Accepted		WCSP
Euphorbia nana Royle	Accepted		WCSP
Euphorbia nana Klotzsch ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia napoides Pax	Synonym		WCSP
Euphorbia natalensis Bernh. ex Krauss	Accepted		WCSP
Euphorbia natalensis sensu Berg. non Bernh.	Synonym		TRO
Euphorbia × navae Svent.	Accepted		WCSP
Euphorbia nayarensis V.W.Steinm.	Accepted		WCSP
Euphorbia ndurumensis P.R.O.Bally [Illegitimate]	Synonym		WCSP
Euphorbia nealleyi J.M.Coult. & Fisher	Synonym		WCSP
Euphorbia neapolitana Ten.	Synonym		WCSP
Euphorbia nebrownii Merr.	Synonym		WCSP
Euphorbia neglecta N.E.Br.	Synonym		WCSP
Euphorbia negromontana N.E.Br.	Accepted		WCSP
Euphorbia neilmulleri M.C.Johnst.	Accepted		WCSP
Euphorbia nelii A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia nelsii Pax	Synonym		WCSP
Euphorbia nelsonii Millsp.	Synonym		WCSP
Euphorbia nematocypha Hand.-Mazz.	Synonym		WCSP
Euphorbia nematocypha var. induta Hand.-Mazz.	Synonym		WCSP
Euphorbia nemoralis Salisb.	Synonym		WCSP
Euphorbia nemoralis Kit. [Illegitimate]	Synonym		WCSP
Euphorbia nemoralis Darl. [Illegitimate]	Synonym		WCSP
Euphorbia nenensis Hiern	Synonym		WCSP
Euphorbia neoangolensis Bruyns	Accepted		WCSP
Euphorbia neoarborescens Bruyns	Accepted		WCSP
Euphorbia neobosseri Rauh	Accepted		WCSP
Euphorbia neocaledonica Boiss.	Accepted		WCSP
Euphorbia neocapitata Bruyns	Accepted		WCSP
Euphorbia neococcinea Bruyns	Accepted		WCSP
Euphorbia neocrispa Bruyns	Accepted		WCSP
Euphorbia neocymosa Bruyns	Accepted		WCSP
Euphorbia neoerubescens Bruyns	Synonym		WCSP
Euphorbia neogillettii Bruyns	Accepted		WCSP
Euphorbia neoglabrata Bruyns	Accepted		WCSP
Euphorbia neoglaucescens Bruyns	Accepted		WCSP
Euphorbia neogoetzei Bruyns	Accepted		WCSP
Euphorbia neogossweileri Bruyns	Accepted		WCSP
Euphorbia neogracilis Bruyns	Accepted		WCSP
Euphorbia neohalipedicola Bruyns	Accepted		WCSP
Euphorbia neohumbertii Boiteau	Accepted		WCSP
Euphorbia neohumbertii var. aureoviridiflora Rauh	Synonym		WCSP
Euphorbia neokaessneri Bruyns	Accepted		WCSP
Euphorbia neomexicana Greene	Synonym		WCSP
Euphorbia neomontana Bruyns	Accepted		WCSP
Euphorbia neoparviflora Bruyns	Accepted		WCSP
Euphorbia neopedunculata Bruyns	Accepted		WCSP
Euphorbia neopolycnemoides Pax & K.Hoffm.	Accepted		WCSP
Euphorbia neoreflexa Bruyns	Accepted		WCSP
Euphorbia neorubella Bruyns	Accepted		WCSP
Euphorbia neostapelioides Bruyns	Synonym		WCSP
Euphorbia neostapelioides var. congesta (P.R.O.Bally) Bruyns	Synonym		WCSP
Euphorbia neostolonifera Bruyns	Accepted		WCSP
Euphorbia neovirgata Bruyns	Accepted		WCSP
Euphorbia neovolkensii Pax	Synonym		WCSP
Euphorbia nepalensis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia nephradenia Barneby	Accepted		WCSP
Euphorbia nereidum Jahand. & Maire	Accepted		WCSP
Euphorbia neriifolia L.	Accepted		WCSP
Euphorbia neriifolia Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia nervosa Kit.	Synonym		WCSP
Euphorbia nesemannii R.A.Dyer	Synonym		WCSP
Euphorbia nesiotica Rob.	Synonym		WCSP
Euphorbia neumanni hort.	Synonym		TRO
Euphorbia neutra A.Berger	Synonym		WCSP
Euphorbia nevadensis Boiss. & Reut.	Accepted		WCSP
Euphorbia nevadensis var. acutifolia (Lange) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia nevadensis var. aragonensis (Loscos & J.Pardo) Boiss.	Synonym		WCSP
Euphorbia nevadensis subsp. aragonensis (Loscos & J.Pardo) O.Bolòs & Vigo	Accepted		WCSP
Euphorbia nevadensis subsp. bolosii Molero & Rovira	Accepted		WCSP
Euphorbia nicaeensis var. aurasiaca Maire	Synonym		WCSP
Euphorbia nicaeensis subsp. cadrilateri (Prodán) Kuzmanov	Synonym		WCSP
Euphorbia nicaeensis var. demnatensis (Coss. ex Batt. & Trab.) Maire	Synonym		WCSP
Euphorbia nicaeensis subsp. demnatensis (Coss. ex Batt. & Trab.) Breistr.	Unresolved		WCSP
Euphorbia nicaeensis subsp. dobrogensis (Prodán) Kuzmanov	Synonym		WCSP
Euphorbia nicaeensis subsp. glareosa (Pall. ex M.Bieb.) Radcl.-Sm.	Synonym		WCSP
Euphorbia nicaeensis subsp. goldei (Prokh.) Greuter & Burdet	Synonym		WCSP
Euphorbia nicaeensis var. hispanica (Degen & Hervier) Cuatrec.	Unresolved		WCSP
Euphorbia nicaeensis subsp. hispanica Degen & Hervier	Synonym		WCSP
Euphorbia nicaeensis var. japygica (Ten.) Nyman	Synonym		WCSP
Euphorbia nicaeensis subsp. japygica (Ten.) Arcang.	Synonym		WCSP
Euphorbia nicaeensis var. lasiocarpa (Boiss.) Radcl.-Sm. & Govaerts	Synonym		WCSP
Euphorbia nicaeensis f. latibracteata (Prodán) Kuzmanov	Synonym		WCSP
Euphorbia nicaeensis subsp. maleevii (Tamamsch.) Oudejans	Synonym		WCSP
Euphorbia nicaeensis subsp. nicaeensis	Unresolved		WCSP
Euphorbia nicaeensis subsp. prostrata (Fiori) Arrigoni	Unresolved		WCSP
Euphorbia nicaeensis subsp. stepposa (Zoz ex Prokh.) Greuter & Burdet	Synonym		WCSP
Euphorbia nicaeensis f. varnensis (Velen.) Kuzmanov	Synonym		WCSP
Euphorbia nicaeensis subsp. volgensis (Krysht.) Oudejans	Synonym		WCSP
Euphorbia nicholasii Oudejans	Accepted		WCSP
Euphorbia niciciana Borbás ex Novák	Synonym		WCSP
Euphorbia nigrispina N.E.Br.	Accepted		WCSP
Euphorbia nigrispinoides M.G.Gilbert	Accepted		WCSP
Euphorbia nilagirica Miq.	Synonym		WCSP
Euphorbia nipensis Carabia	Synonym		WCSP
Euphorbia niqueroana Urb.	Synonym		WCSP
Euphorbia nirurioides (Millsp.) Fawc. & Rendle	Synonym		WCSP
Euphorbia nitens Trevir.	Synonym		WCSP
Euphorbia nivulia Buch.-Ham.	Accepted		WCSP
Euphorbia nivulia var. helicothele (Lem.) Boiss.	Synonym		WCSP
Euphorbia nocens (L.C.Wheeler) V.W.Steinm.	Accepted		WCSP
Euphorbia nodiflora Steud.	Synonym		WCSP
Euphorbia nodosa Houtt.	Accepted		WCSP
Euphorbia nodosa N.E.Br. [Illegitimate]	Synonym		WCSP
Euphorbia noeana Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia nogalensis (A.Hässl.) S.Carter	Accepted		WCSP
Euphorbia norfolkiana Boiss.	Accepted		WCSP
Euphorbia normannii Schmalh. ex Lipsky	Accepted		WCSP
Euphorbia nortoniana A.Nelson	Synonym		WCSP
Euphorbia notadenia Boiss. & Hohen.	Synonym		WCSP
Euphorbia notata Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia notoptera Boiss.	Accepted		WCSP
Euphorbia novomexicana (Klotzsch & Garcke) L.C.Wheeler	Synonym		WCSP
Euphorbia novorossica Dubovik	Synonym		WCSP
Euphorbia noxia Pax	Accepted		WCSP
Euphorbia nubica N.E.Br.	Accepted		WCSP
Euphorbia nubigena L.C.Leach	Accepted		WCSP
Euphorbia nuda Velen.	Accepted		WCSP
Euphorbia nuda Lam. ex Pers. [Invalid]	Synonym		WCSP
Euphorbia nudicaulis Chapm. [Illegitimate]	Synonym		WCSP
Euphorbia nudicaulis Perr.	Accepted		WCSP
Euphorbia nudiflora Lam.	Synonym		WCSP
Euphorbia nudiflora Jacq. [Illegitimate]	Synonym		WCSP
Euphorbia nummularia Hook.f.	Accepted		WCSP
Euphorbia nummularia var. glabra B.L.Rob. & Greenm.	Synonym		WCSP
Euphorbia nummulariifolia Willd.	Synonym		WCSP
Euphorbia nutans Lag.	Accepted		WCSP
Euphorbia nutans var. glaberrima Thell.	Synonym		WCSP
Euphorbia nuttallii (Engelm.) Small	Synonym		WCSP
Euphorbia × nyaradyana Prodán	Accepted		WCSP
Euphorbia nyassae Pax	Accepted		WCSP
Euphorbia nyassae subsp. mentiens S.Carter	Synonym		WCSP
Euphorbia nyikae Pax ex Engl.	Accepted		WCSP
Euphorbia nyikae var. neovolkensii (Pax) S.Carter	Accepted		WCSP
Euphorbia oahuensis Skottsb.	Synonym		WCSP
Euphorbia oatesii Rolfe	Accepted		WCSP
Euphorbia oaxacana B.L.Rob. & Greenm.	Accepted		WCSP
Euphorbia obconica Bojer ex N.E.Br.	Accepted		WCSP
Euphorbia obcordata Denis [Illegitimate]	Synonym		WCSP
Euphorbia obcordata Balf.f.	Accepted		WCSP
Euphorbia obesa Hook.f.	Accepted		WCSP
Euphorbia obesa subsp. symmetrica (A.C.White, R.A.Dyer & B.Sloane) G.D.Rowley	Accepted		WCSP
Euphorbia oblanceolata Balf.f.	Accepted		WCSP
Euphorbia obliqua F.A.Bauer ex Endl.	Accepted		WCSP
Euphorbia obliqua var. phyllanthoides (Boiss.) Boiss.	Synonym		WCSP
Euphorbia obliquata Forssk.	Synonym		WCSP
Euphorbia obliquifolia Kunze ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia obliterata Jacq.	Synonym		WCSP
Euphorbia oblongata Griseb.	Accepted		WCSP
Euphorbia oblongata var. oblongata	Accepted		WCSP
Euphorbia oblongata subsp. sessiliflora (Boiss.) Nyman	Synonym		WCSP
Euphorbia oblongata var. sessiliflora Boiss.	Accepted		WCSP
Euphorbia oblongicaulis Baker	Synonym		WCSP
Euphorbia oblongifolia (K.Koch) K.Koch	Accepted		WCSP
Euphorbia obovalifolia A.Rich.	Synonym		WCSP
Euphorbia obovata Decne.	Accepted		WCSP
Euphorbia obscura Loisel.	Synonym		WCSP
Euphorbia obscura Láng ex Rchb. [Illegitimate]	Synonym		WCSP
Euphorbia obtusata Pursh	Synonym		WCSP
Euphorbia obtusifolia Lam.	Synonym		WCSP
Euphorbia × obtusifolia Schur [Illegitimate]	Unresolved		WCSP
Euphorbia obtusifolia Poir. [Illegitimate]	Synonym		WCSP
Euphorbia obtusifolia var. despoliata Menezes	Synonym		WCSP
Euphorbia obtusifolia f. latibracteata G.Kunkel	Synonym		WCSP
Euphorbia obtusifolia var. pseudodendroides (H. Lindb.) Maire	Synonym		TRO
Euphorbia obtusifolia subsp. regis-jubae (J.Gay) Maire	Synonym		WCSP
Euphorbia obtusifolia var. wildpretii Molero & Rovira	Synonym		WCSP
Euphorbia occidentalis Drew	Synonym		WCSP
Euphorbia occidentaustralica Radcl.-Sm. & Govaerts	Accepted		WCSP
Euphorbia occulta Klotzsch	Synonym		WCSP
Euphorbia ocellata Durand & Hilg.	Accepted		WCSP
Euphorbia ocellata subsp. arenicola (Parish) Oudejans	Accepted		WCSP
Euphorbia ocellata var. arenicola (Parish) Jeps.	Synonym		WCSP
Euphorbia ocellata subsp. kirbyi J.T.Howell	Synonym		WCSP
Euphorbia ocellata subsp. ocellata	Accepted		WCSP
Euphorbia ocellata var. rattanii (S.Watson) L.C.Wheeler	Synonym		WCSP
Euphorbia ocellata subsp. rattanii (S.Watson) Oudejans	Accepted		WCSP
Euphorbia ocellata subsp. rattanii (S. Watson) Koutnik	Synonym		TRO
Euphorbia ocellata var. sulfurea (Millsp.) Jeps.	Synonym		WCSP
Euphorbia octogona Steud. [Unplaced]	Unresolved		WCSP
Euphorbia octoradiata H.Lév. & Vaniot	Synonym		WCSP
Euphorbia ocymoidea L.	Accepted		WCSP
Euphorbia ocymoidea var. barnesii (Millsp.) McVaugh	Synonym		WCSP
Euphorbia ocymoidea var. subreniformis (S.Watson) McVaugh	Synonym		WCSP
Euphorbia ocymoides Hook. & Arn.	Unresolved		TRO
Euphorbia odontadenia Boiss.	Synonym		WCSP
Euphorbia odontophora S.Carter	Accepted		WCSP
Euphorbia odontophylla Boiss.	Synonym		WCSP
Euphorbia odontophylla Willd.	Synonym		WCSP
Euphorbia oerstediana (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia officinalis Forssk.	Accepted		WCSP
Euphorbia officinarum L.	Accepted		WCSP
Euphorbia officinarum Hochst. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia officinarum subsp. beaumieriana (Hook.f. & Coss.) Vindt	Synonym		WCSP
Euphorbia officinarum var. beaumieriana (Hook.f. & Coss.) Maire	Accepted		WCSP
Euphorbia officinarum subsp. echinus (Hook.f. & Coss.) Vindt	Accepted		WCSP
Euphorbia officinarum var. hernandez-pachecoi (Caball.) Oudejans	Synonym		WCSP
Euphorbia officinarum var. kolquall Willd.	Synonym		WCSP
Euphorbia ogadenensis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia ohiotica Steud. & Hochst. ex Boiss.	Synonym		WCSP
Euphorbia ohiva Swanepoel	Unresolved		WCSP (in review)
Euphorbia oidorrhiza Pojark.	Accepted		WCSP
Euphorbia oleifolia Gouan [Illegitimate]	Synonym		WCSP
Euphorbia oleifolia Pourr.	Synonym		WCSP
Euphorbia oleracea Pers.	Synonym		WCSP
Euphorbia oligantha Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia oligoclada L.C.Leach	Accepted		WCSP
Euphorbia olivacea Small	Synonym		WCSP
Euphorbia olowaluana Sherff	Accepted		WCSP
Euphorbia olowaluana var. gracilis (Rock) Sherff	Synonym		WCSP
Euphorbia olowaluana var. lepidofolia O.Deg. & Sherff	Synonym		WCSP
Euphorbia omariana M.G.Gilbert	Accepted		WCSP
Euphorbia oncoclada Drake	Synonym		WCSP
Euphorbia onoi Franch. & Sav.	Synonym		WCSP
Euphorbia opaca Láng ex Rchb. [Illegitimate]	Synonym		WCSP
Euphorbia ophthalmica Pers.	Accepted		WCSP
Euphorbia oppositifolia McVaugh	Accepted		WCSP
Euphorbia opuntioides Welw. ex Hiern	Accepted		WCSP
Euphorbia orabensis Dinter	Synonym		WCSP
Euphorbia oranensis (Croizat) Subils	Accepted		WCSP
Euphorbia oraria F.Muell. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia orbiculata Miq. [Illegitimate]	Synonym		WCSP
Euphorbia orbiculata Kunth	Accepted		WCSP
Euphorbia orbiculata var. jawaharii Rajagopal & Panigrahi	Synonym		WCSP
Euphorbia orbiculifolia S.Carter	Accepted		WCSP
Euphorbia orbifolia (Alain) Oudejans	Accepted		WCSP
Euphorbia oreophila Miq.	Synonym		WCSP
Euphorbia oreophila var. pubescens Boiss.	Synonym		WCSP
Euphorbia oreophila var. wightiana (Boiss.) Boiss.	Synonym		WCSP
Euphorbia orientalis L.	Accepted		WCSP
Euphorbia orientalis (Boiss.) Velen. [Illegitimate]	Synonym		WCSP
Euphorbia origanoides L.	Accepted		WCSP
Euphorbia orizabae Boiss.	Accepted		WCSP
Euphorbia orjeni Beck	Accepted		WCSP
Euphorbia ornata Stapf	Synonym		WCSP
Euphorbia ornithopus Jacq.	Accepted		WCSP
Euphorbia orobanchoides (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia orobanchoides var. calycina (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia orobanchoides var. orobanchoides	Accepted		WCSP
Euphorbia orphanidis Boiss.	Accepted		WCSP
Euphorbia orthoclada Baker	Accepted		WCSP
Euphorbia orthoclada subsp. vepretorum (Drake) Leandri	Synonym		TRO
Euphorbia oryctis Dinter	Accepted		WCSP
Euphorbia oschtenica Galushko	Synonym		WCSP
Euphorbia osyridea Boiss.	Accepted		WCSP
Euphorbia osyridiformis Parsa	Accepted		WCSP
Euphorbia otjingandu Swanepoel	Unresolved		WCSP (in review)
Euphorbia otjipembana L.C.Leach	Accepted		WCSP
Euphorbia ovalifolia Kostel.	Synonym		WCSP
Euphorbia ovalifolia (Engelm. ex Klotzsch) Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia ovalifolia Engelm.	Synonym		TRO
Euphorbia ovalifolia var. argentina Müll.Arg. ex Griseb.	Synonym		WCSP
Euphorbia ovalifolia var. dentata R.E.Fr.	Synonym		WCSP
Euphorbia ovalifolia var. montevidensis Boiss.	Synonym		WCSP
Euphorbia ovalifolia var. schizosepala Engelm. ex Boiss.	Synonym		WCSP
Euphorbia ovalleana Phil.	Accepted		WCSP
Euphorbia ovata Larrañaga [Illegitimate]	Synonym		WCSP
Euphorbia ovata (E.Mey. ex Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia oxycoccoides Boiss.	Accepted		WCSP
Euphorbia oxyodonta Boiss.	Accepted		WCSP
Euphorbia oxyphylla Boiss.	Accepted		WCSP
Euphorbia oxystegia Boiss.	Accepted		WCSP
Euphorbia pachyceras Coss. ex Lacaita [Invalid]	Synonym		WCSP
Euphorbia pachyclada S.Carter	Accepted		WCSP
Euphorbia pachypoda Urb.	Synonym		WCSP
Euphorbia pachypodioides Boiteau	Accepted		WCSP
Euphorbia pachyrrhiza Kar. & Kir.	Accepted		WCSP
Euphorbia pachysantha Baill.	Accepted		WCSP
Euphorbia padifolia (L.) Guss.	Synonym		WCSP
Euphorbia padifolia Brandegee [Illegitimate]	Synonym		WCSP
Euphorbia paganorum A.Chev.	Accepted		WCSP
Euphorbia palatinata F.Zimmerm. ex Thell. & F.Zimmerm. [Invalid]	Synonym		WCSP
Euphorbia pallasiana Turcz. ex Fisch. & C.A.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia pallasii Turcz. ex Ledeb.	Synonym		WCSP
Euphorbia pallasii Turcz.	Synonym		TRO
Euphorbia pallasii var. glaberrima Maxim.	Synonym		WCSP
Euphorbia pallasii f. glaberrima (Maxim.) Kitag.	Synonym		WCSP
Euphorbia pallasii var. komaroviana (Prokh.) Y.C.Zhu	Synonym		WCSP
Euphorbia pallasii var. pilosa Regel	Synonym		WCSP
Euphorbia pallens Dillwyn	Accepted		WCSP
Euphorbia pallida Willd.	Synonym		WCSP
Euphorbia palmeri Engelm. ex S.Watson	Accepted		WCSP
Euphorbia palmeri var. palmeri	Accepted		WCSP
Euphorbia palmeri var. peplifolia Norton	Synonym		WCSP
Euphorbia palmeri var. subpubens (Engelm.) L.C.Wheeler	Accepted		WCSP
Euphorbia palmyrena Mouterde	Synonym		WCSP
Euphorbia paludicola McVaugh	Synonym		WCSP
Euphorbia paludosa Rouy	Synonym		WCSP
Euphorbia palustris L.	Accepted		WCSP
Euphorbia palustris var. angustifolia Pers.	Synonym		WCSP
Euphorbia pamirica (Prokh.) Prokh.	Accepted		WCSP
Euphorbia pampeana Speg.	Accepted		WCSP
Euphorbia panacea Webb & Berthel.	Synonym		WCSP
Euphorbia pancheri Baill.	Accepted		WCSP
Euphorbia panchganiensis Blatt. & McCann	Synonym		WCSP
Euphorbia pancicii Beck	Synonym		WCSP
Euphorbia pandurata Huber	Synonym		WCSP
Euphorbia pandurifolia Roth	Synonym		WCSP
Euphorbia paniculata Desf.	Accepted		WCSP
Euphorbia paniculata Elliott [Illegitimate]	Synonym		WCSP
Euphorbia paniculata subsp. monchiquensis (Franco & P.Silva) Vicens, Molero & C.Blanché	Accepted		WCSP
Euphorbia paniculata subsp. paniculata	Accepted		WCSP
Euphorbia paniculata subsp. welwitschii (Boiss. & Reut.) Vicens, Molero & C.Blanché	Accepted		WCSP
Euphorbia panjutinii Grossh.	Accepted		WCSP
Euphorbia pannonica Host	Accepted		WCSP
Euphorbia pannonica f. kitaibelii Soó	Synonym		WCSP
Euphorbia pantomalaca Standl. & Steyerm.	Accepted		WCSP
Euphorbia papilionum S.Carter	Accepted		WCSP
Euphorbia papillaris (Boiss.) Raffaelli & Ricceri	Accepted		WCSP
Euphorbia papilligera Boiss.	Synonym		WCSP
Euphorbia papillosa A.St.-Hil.	Accepted		WCSP
Euphorbia papillosa Pouzolz ex Gren. & Godr. [Illegitimate]	Synonym		WCSP
Euphorbia papillosa var. cabrerae Subils	Synonym		WCSP
Euphorbia papillosa var. erythrorrhiza (Klotzsch & Garcke) Subils	Synonym		WCSP
Euphorbia papillosa var. minor A.St.-Hil.	Synonym		WCSP
Euphorbia papillosicapsa L.C.Leach	Accepted		WCSP
Euphorbia × paradoxa (Schur) Simonk.	Accepted		WCSP
Euphorbia paraguayensis D. Parodi	Unresolved		TRO
Euphorbia paralias L.	Accepted		WCSP
Euphorbia paranensis Dusén	Accepted		WCSP
Euphorbia parannaquensis Blanco	Synonym		WCSP
Euphorbia parasitica Pav. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia parciflora Urb.	Accepted		WCSP
Euphorbia parciramulosa Schweinf.	Accepted		WCSP
Euphorbia paredonensis (Millsp.) Oudejans	Accepted		WCSP
Euphorbia parifolia N.E.Br.	Accepted		WCSP
Euphorbia parishii Greene	Accepted		WCSP
Euphorbia parkeri Binojk. & N.P.Balakr.	Accepted		WCSP
Euphorbia parodii Oudejans	Accepted		WCSP
Euphorbia parryi Engelm.	Accepted		WCSP
Euphorbia parva N.E.Br.	Accepted		WCSP
Euphorbia parvicaruncula D.C.Hassall	Accepted		WCSP
Euphorbia parviceps L.C.Leach	Accepted		WCSP
Euphorbia parvicyathophora Rauh	Accepted		WCSP
Euphorbia parviflora L.	Accepted		WCSP
Euphorbia parvifolia E.Mey. ex Boiss.	Synonym		WCSP
Euphorbia parvifolia var. laxa Boiss.	Synonym		WCSP
Euphorbia parvimamma Boiss.	Synonym		WCSP
Euphorbia parvula Delile	Accepted		WCSP
Euphorbia parvula K.Koch [Illegitimate]	Synonym		WCSP
Euphorbia passa N.E.Br.	Synonym		WCSP
Euphorbia × pasteurii T.Walker [Unplaced]	Unresolved		WCSP
Euphorbia patagonica Hieron.	Synonym		WCSP
Euphorbia patellifera J.T.Howell	Synonym		WCSP
Euphorbia patens Kit.	Synonym		WCSP
Euphorbia patentispina S.Carter	Accepted		WCSP
Euphorbia pattersonii Svent.	Unresolved		TRO
Euphorbia patula Mill.	Accepted		WCSP
Euphorbia pauciflora Hill [Unplaced]	Unresolved		WCSP
Euphorbia pauciflora Nutt. ex Seem. [Illegitimate]	Synonym		WCSP
Euphorbia pauciflora Dufour [Illegitimate]	Synonym		WCSP
Euphorbia paucifolia Klotzsch	Synonym		WCSP
Euphorbia paucipila Urb.	Synonym		WCSP
Euphorbia pauciradiata Blatt.	Accepted		WCSP
Euphorbia paui Lacaita ex Losa	Synonym		WCSP
Euphorbia paulianii Ursch & Leandri	Accepted		WCSP
Euphorbia paxiana Dinter	Accepted		WCSP
Euphorbia pearsonii N.E.Br.	Synonym		WCSP
Euphorbia pectinata Albov	Synonym		WCSP
Euphorbia pedemontana L.C.Leach	Accepted		WCSP
Euphorbia pedersenii Subils	Accepted		WCSP
Euphorbia pediculifera Engelm.	Accepted		WCSP
Euphorbia pediculifera var. abramsiana (L.C.Wheeler) Ewan	Synonym		WCSP
Euphorbia pediculifera var. inornata Brandegee	Synonym		WCSP
Euphorbia pediculifera var. involuta (Millsp.) I.M.Johnst.	Synonym		WCSP
Euphorbia pediculifera var. linearifolia S.Watson	Synonym		WCSP
Euphorbia pediculifera var. minor Millsp.	Synonym		WCSP
Euphorbia pedilanthoides Denis	Accepted		WCSP
Euphorbia pedroi Molero & Rovira	Accepted		WCSP
Euphorbia pedunculata Klotzsch ex Jabl. [Illegitimate]	Synonym		WCSP
Euphorbia pedunculosa A.Rich.	Synonym		WCSP
Euphorbia peganoides Boiss.	Accepted		WCSP
Euphorbia × peisonis Rech.f.	Accepted		WCSP
Euphorbia pekinensis Rupr.	Accepted		WCSP
Euphorbia pekinensis var. acuminata Hurus.	Synonym		WCSP
Euphorbia pekinensis var. attenuata Hurus.	Synonym		WCSP
Euphorbia pekinensis f. denudata (Hurus.) Oudejans	Synonym		WCSP
Euphorbia pekinensis var. fauriei (H.Lév. & Vaniot) Hurus.	Synonym		WCSP
Euphorbia pekinensis subsp. fauriei (H.Lév. & Vaniot) Kuros. & H.Ohashi	Synonym		WCSP
Euphorbia pekinensis var. hupehensis Hurus.	Synonym		WCSP
Euphorbia pekinensis var. ibukiensis Hurus.	Synonym		WCSP
Euphorbia pekinensis var. japonensis Makino	Synonym		WCSP
Euphorbia pekinensis var. lasiocaula (Boiss.) Oudejans	Synonym		WCSP
Euphorbia pekinensis var. onoi (Franch. & Sav.) Makino	Synonym		WCSP
Euphorbia pekinensis subsp. pekinensis	Accepted		WCSP
Euphorbia pekinensis var. pseudolucorum (Hurus.) Oudejans	Synonym		WCSP
Euphorbia pekinensis f. sinanensis Hurus.	Synonym		WCSP
Euphorbia pekinensis var. sinanensis (Hurus.) Oudejans	Synonym		WCSP
Euphorbia pekinensis var. sinensis (Hurus.) Oudejans	Synonym		TRO
Euphorbia pekinensis f. sinensis Hurus.	Synonym		TRO
Euphorbia pekinensis var. subulatifolius (Hurus.) T.B.Lee	Synonym		WCSP
Euphorbia pekinensis var. watanabei (Makino) Oudejans	Synonym		WCSP
Euphorbia pellegrinii Leandri	Accepted		WCSP
Euphorbia peltata Sessé & Moc. [Illegitimate]	Synonym		WCSP
Euphorbia peltata Roxb.	Accepted		WCSP
Euphorbia peltigera E.Mey. ex Boiss.	Synonym		WCSP
Euphorbia pendula (Haw.) Sweet	Synonym		WCSP
Euphorbia penicillata (Millsp.) R.E.Schult.	Synonym		WCSP
Euphorbia peninsularis I.M.Johnst.	Accepted		WCSP
Euphorbia pentadactyla Griseb.	Accepted		WCSP
Euphorbia pentagona Royle [Illegitimate]	Synonym		WCSP
Euphorbia pentagona Haw.	Accepted		WCSP
Euphorbia pentagona Blanco [Illegitimate]	Synonym		WCSP
Euphorbia pentagona Noronha [Illegitimate]	Synonym		WCSP
Euphorbia pentlandii Boiss.	Accepted		WCSP
Euphorbia pentops Marloth ex A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia peperomioides Boiss.	Accepted		WCSP
Euphorbia peplidion Engelm.	Accepted		WCSP
Euphorbia peplifolia Engelm. [Invalid]	Synonym		WCSP
Euphorbia peploides Gouan	Synonym		WCSP
Euphorbia peploides Nutt. [Illegitimate]	Synonym		WCSP
Euphorbia peplus L.	Accepted		WCSP
Euphorbia peplus var. maritima Boiss.	Synonym		WCSP
Euphorbia peplus var. minima DC.	Accepted		WCSP
Euphorbia peplus var. minor Willd.	Synonym		WCSP
Euphorbia peplus var. peploides (Gouan) Vis.	Synonym		WCSP
Euphorbia peplus var. peplus	Accepted		WCSP
Euphorbia perangusta R.A.Dyer	Accepted		WCSP
Euphorbia perangustifolia S.Carter	Accepted		WCSP
Euphorbia perarmata S.Carter	Accepted		WCSP
Euphorbia perbracteata Gage	Accepted		WCSP
Euphorbia perennans (Shinners) Warnock & M.C.Johnst.	Accepted		WCSP
Euphorbia pereskiifolia Houllet ex Baill.	Accepted		WCSP
Euphorbia perfoliata Scheutz	Accepted		WCSP
Euphorbia perforata Guss.	Synonym		WCSP
Euphorbia perforata Tineo ex Lojac. [Illegitimate]	Synonym		WCSP
Euphorbia pergamena Small	Accepted		WCSP
Euphorbia pergracilis P.G.Mey.	Accepted		WCSP
Euphorbia peritropoides (Millsp.) V.W.Steinm.	Accepted		WCSP
Euphorbia perlignea McVaugh	Accepted		WCSP
Euphorbia perpera N.E.Br.	Accepted		WCSP
Euphorbia perplexa L.C.Leach	Accepted		WCSP
Euphorbia perplexa var. perplexa	Accepted		WCSP
Euphorbia perrieri Drake	Accepted		WCSP
Euphorbia perrottetii Jaub. & Spach	Synonym		WCSP
Euphorbia persepolitana Boiss.	Synonym		WCSP
Euphorbia persica Steven ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia persistens R.A.Dyer	Synonym		WCSP
Euphorbia persistentifolia L.C.Leach	Accepted		WCSP
Euphorbia personata (Croizat) V.W.Steinm.	Accepted		WCSP
Euphorbia peruviana L.C.Wheeler	Accepted		WCSP
Euphorbia pervilleana Baill.	Accepted		WCSP
Euphorbia pervittata S.Carter	Accepted		WCSP
Euphorbia pestalozzae Boiss.	Accepted		WCSP
Euphorbia petala Ewart & L.R.Kerr	Accepted		WCSP
Euphorbia petaloidea Engelm.	Synonym		WCSP
Euphorbia petaloidea var. flagelliformis Engelm.	Synonym		WCSP
Euphorbia petaloidea var. intermedia Engelm.	Synonym		WCSP
Euphorbia petaloidea var. nicolletii Engelm.	Synonym		WCSP
Euphorbia petaloidea var. nuttallii Engelm.	Synonym		WCSP
Euphorbia petaloides G.Don	Synonym		WCSP
Euphorbia petiolaris Sims	Accepted		WCSP
Euphorbia petiolata Banks & Sol.	Accepted		WCSP
Euphorbia petiolata var. petiolata	Accepted		WCSP
Euphorbia petiolata var. postii (Boiss.) Radcl.-Sm.	Accepted		WCSP
Euphorbia petitiana A.Rich.	Accepted		WCSP
Euphorbia petraea S.Carter	Accepted		WCSP
Euphorbia petricola P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia petrina S.Watson	Accepted		WCSP
Euphorbia petrophila C.A.Mey.	Accepted		WCSP
Euphorbia petrophila var. armena Boiss.	Synonym		WCSP
Euphorbia petrophila var. colchica Litv.	Synonym		WCSP
Euphorbia × petterssonii Svent.	Accepted		WCSP
Euphorbia pfeilii Pax	Accepted		WCSP
Euphorbia phagriformis Graessn. [Unplaced]	Unresolved		WCSP
Euphorbia phanerophlebias Baker ex Denis [Invalid]	Synonym		WCSP
Euphorbia philippiana (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia phillipsiae N.E.Br.	Accepted		WCSP
Euphorbia phillipsioides S.Carter	Accepted		WCSP
Euphorbia philora (Cockerell) Tidestr.	Synonym		WCSP
Euphorbia phlomos Candargy	Synonym		WCSP
Euphorbia phofarensis S. Carter	Unresolved		TRO
Euphorbia phosphorea Mart.	Accepted		WCSP
Euphorbia phyllanthoides Boiss.	Synonym		WCSP
Euphorbia phylloclada Boiss.	Accepted		WCSP
Euphorbia phymatoclada Boiss.	Synonym		WCSP
Euphorbia phymatosperma Boiss.	Accepted		WCSP
Euphorbia phymatosperma subsp. cernua (Coss. & Durieu ex Boiss.) Vindt	Accepted		WCSP
Euphorbia physalifolia Boiss.	Synonym		WCSP
Euphorbia physocaulos Mouterde	Accepted		WCSP
Euphorbia physoclada Boiss.	Accepted		WCSP
Euphorbia picachensis Brandegee	Accepted		WCSP
Euphorbia piceoides Thulin	Unresolved		WCSP (in review)
Euphorbia picta Jacq.	Synonym		WCSP
Euphorbia pileoides Millsp.	Synonym		WCSP
Euphorbia pillansii N.E.Br.	Accepted		WCSP
Euphorbia pillansii var. albovirens A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia pillansii var. ramosissima A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia pilosa Pursh [Illegitimate]	Synonym		WCSP
Euphorbia pilosa L.	Accepted		WCSP
Euphorbia pilosa var. austriaca (A.Kern.) Nyman	Synonym		WCSP
Euphorbia pilosa var. cognata (Boiss.) Hook.f.	Synonym		WCSP
Euphorbia pilosa var. cornigera (Boiss.) Hook. f.	Synonym		TRO
Euphorbia pilosa var. illirica (Lam.) Nyman	Synonym		WCSP
Euphorbia pilosa var. longifolia Rouy	Synonym		WCSP
Euphorbia pilosa subsp. ojensis Stepanov	Synonym		WCSP
Euphorbia pilosa var. procera (M.Bieb.) Nyman	Synonym		WCSP
Euphorbia pilosa var. reichenbachiana (Willk.) Boiss.	Synonym		WCSP
Euphorbia pilosa var. trigonocarpa (Fisch.) Boiss.	Synonym		WCSP
Euphorbia pilosa var. villosa (Waldst. & Kit. ex Willd.) Nyman	Synonym		WCSP
Euphorbia pilosa subsp. villosa (Waldst. & Kit. ex Willd.) Nyman	Synonym		WCSP
Euphorbia pilosissima S.Carter	Accepted		WCSP
Euphorbia pilosula Engelm. ex Boiss.	Synonym		WCSP
Euphorbia pilulifera L.	Synonym		WCSP
Euphorbia pilulifera Jacq.	Synonym		TRO
Euphorbia pilulifera A. Chev.	Synonym		TRO
Euphorbia pilulifera var. arechavaletae Herter	Synonym		WCSP
Euphorbia pilulifera var. discolor Engelm.	Synonym		WCSP
Euphorbia pilulifera var. glabrescens Thell.	Synonym		WCSP
Euphorbia pilulifera var. guaranitica Chodat & Hassl.	Synonym		WCSP
Euphorbia pilulifera var. hirta (L.) Thell.	Synonym		WCSP
Euphorbia pilulifera var. hirta (L.) Griseb.	Synonym		TRO
Euphorbia pilulifera f. humifusa Domin	Synonym		WCSP
Euphorbia pilulifera var. obliterata (Jacq.) Hitchc.	Synonym		WCSP
Euphorbia pilulifera var. procumbens Boiss.	Synonym		WCSP
Euphorbia pilulifera f. rubromaculata Domin	Synonym		WCSP
Euphorbia pilulifera f. viridis Domin	Synonym		WCSP
Euphorbia pimeleodendron Pax	Synonym		WCSP
Euphorbia pinariona Urb.	Synonym		WCSP
Euphorbia pinctorum Dubovik	Unresolved		TRO
Euphorbia pindicola Hausskn.	Synonym		WCSP
Euphorbia pinea L.	Synonym		WCSP
Euphorbia pinea var. azorica (Hochst.) Boiss.	Synonym		WCSP
Euphorbia pinea subsp. celerieri Emb.	Synonym		WCSP
Euphorbia pinetorum G.L.Webster	Synonym		WCSP
Euphorbia pinetorum Dubovik [Illegitimate]	Synonym		WCSP
Euphorbia pinifolia Willd. [Illegitimate]	Synonym		WCSP
Euphorbia pinifolia Lam.	Synonym		WCSP
Euphorbia pinkavana M.C.Johnst.	Accepted		WCSP
Euphorbia pinnulosa Lojac.	Synonym		WCSP
Euphorbia pinus H.Lév.	Synonym		WCSP
Euphorbia pionosperma V.W.Steinm. & Felger	Accepted		WCSP
Euphorbia pirahazo Jum.	Synonym		WCSP
Euphorbia pirottae N.Terracc.	Accepted		WCSP
Euphorbia piscatoria Aiton	Accepted		WCSP
Euphorbia piscidermis M.G.Gilbert	Accepted		WCSP
Euphorbia pisidica Hub.-Mor. & M.S.Khan	Accepted		WCSP
Euphorbia pistiifolia Boiss.	Synonym		WCSP
Euphorbia pitcairnensis F.Br.	Synonym		WCSP
Euphorbia pithyusa L.	Accepted		WCSP
Euphorbia pithyusa (Req. ex Gren. & Godr.) Fiori	Synonym		TRO
Euphorbia pithyusa var. bonifaciensis Fiori	Synonym		WCSP
Euphorbia pithyusa var. cupanii (Guss. ex Bertol.) Fiori	Synonym		WCSP
Euphorbia pithyusa subsp. cupanii (Guss. ex Bertol.) Radcl.-Sm.	Accepted		WCSP
Euphorbia pithyusa var. dianthifolia (Lojac.) Oudejans	Synonym		WCSP
Euphorbia pithyusa var. ovalifolia Fiori	Synonym		WCSP
Euphorbia pithyusa subsp. pithyusa	Accepted		WCSP
Euphorbia pithyusa var. procera Gren. & Godr.	Synonym		WCSP
Euphorbia plagiantha Drake	Accepted		WCSP
Euphorbia planiceps A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia planiticola D.C.Hassall	Accepted		WCSP
Euphorbia platyacantha Pax [Illegitimate]	Synonym		WCSP
Euphorbia platyacantha Drake	Synonym		WCSP
Euphorbia platycephala Pax	Accepted		WCSP
Euphorbia platyclada Rauh	Accepted		WCSP
Euphorbia platylepis Decne.	Synonym		WCSP
Euphorbia platymammillaris Croizat	Synonym		WCSP
Euphorbia platyphyllos L.	Accepted		WCSP
Euphorbia platyphyllos subsp. flavopurpurea (Willk.) Nyman	Synonym		WCSP
Euphorbia platyphyllos var. literata (Jacq.) W.D.J.Koch	Synonym		WCSP
Euphorbia platyphyllos subsp. literata (Jacq.) Holub	Accepted		WCSP
Euphorbia platyphyllos subsp. platyphyllos	Accepted		WCSP
Euphorbia platyphyllos var. serrulata (Thuill.) Pers.	Synonym		WCSP
Euphorbia platyphyllos var. stricta (L.) Fiori	Synonym		WCSP
Euphorbia platyphyllos var. subciliata (Pers.) Nyman	Synonym		WCSP
Euphorbia platypoda Pax	Accepted		WCSP
Euphorbia platyrrhiza L.C.Leach	Accepted		WCSP
Euphorbia platysperma Engelm. ex S.Watson	Accepted		WCSP
Euphorbia plebeia Boiss.	Accepted		WCSP
Euphorbia plenispina S.Carter	Accepted		WCSP
Euphorbia plicata S.Watson	Synonym		WCSP
Euphorbia plumerioides Teijsm. ex Hassk.	Accepted		WCSP
Euphorbia plumerioides var. acuminata J.J.Sm.	Synonym		WCSP
Euphorbia plumerioides var. homochroa Boiss.	Synonym		WCSP
Euphorbia plumerioides var. macrocarpa Radcl.-Sm.	Synonym		WCSP
Euphorbia plumerioides var. microphylla Radcl.-Sm.	Synonym		WCSP
Euphorbia plummerae S.Watson	Synonym		WCSP
Euphorbia podadenia Boiss.	Accepted		WCSP
Euphorbia podagrica I.M.Johnst.	Synonym		WCSP
Euphorbia podocarpifolia Urb.	Accepted		WCSP
Euphorbia × podolica Blocki ex Borza [Invalid]	Unresolved		WCSP
Euphorbia × podperae Croizat	Unresolved		WCSP
Euphorbia poecilophylla (Prokh.) Prokh.	Accepted		WCSP
Euphorbia poeppigii (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia poeppigii var. laxa Boiss.	Synonym		WCSP
Euphorbia poggei Pax	Synonym		WCSP
Euphorbia poggei var. benguelensis Pax	Synonym		WCSP
Euphorbia poggei var. villosa Pax	Synonym		WCSP
Euphorbia poinsettiana Buist ex Giah. [Illegitimate]	Synonym		WCSP
Euphorbia poissonii Pax	Accepted		WCSP
Euphorbia poliosperma Urb.	Synonym		WCSP
Euphorbia polyacantha Boiss.	Accepted		WCSP
Euphorbia polyacantha subsp. rosenii Pax	Synonym		WCSP
Euphorbia polyacantha var. subinarticulata Schweinf.	Synonym		WCSP
Euphorbia polyantha Pax	Accepted		WCSP
Euphorbia polycarpa Benth.	Accepted		WCSP
Euphorbia polycarpa var. appendiculata (Engelm.) Munz	Synonym		WCSP
Euphorbia polycarpa var. carmenensis (Rose) L.C.Wheeler	Synonym		WCSP
Euphorbia polycarpa var. genuflexa L.C.Wheeler	Synonym		WCSP
Euphorbia polycarpa var. hirtella Boiss.	Synonym		WCSP
Euphorbia polycarpa var. intermixta (S.Watson) L.C.Wheeler	Synonym		WCSP
Euphorbia polycarpa var. johnstonii L.C.Wheeler	Synonym		WCSP
Euphorbia polycarpa var. mejamia L.C.Wheeler	Synonym		WCSP
Euphorbia polycarpa var. parishii (Greene) Jeps.	Synonym		WCSP
Euphorbia polycarpa var. petrina (S.Watson) I.M.Johnst.	Synonym		WCSP
Euphorbia polycarpa var. simulans L.C.Wheeler	Synonym		WCSP
Euphorbia polycarpa var. vestita S.Watson	Synonym		WCSP
Euphorbia polycaulis Boiss. & Hohen.	Synonym		WCSP
Euphorbia polycephala Marloth	Accepted		WCSP
Euphorbia polychroma A.Kern.	Synonym		WCSP
Euphorbia polychroma f. denticulata Rohlena	Synonym		WCSP
Euphorbia polychroma subsp. lingulata (Heuff.) Soó	Synonym		WCSP
Euphorbia polychroma f. longifolia Beck	Synonym		WCSP
Euphorbia polychroma var. microsperma Murb.	Synonym		WCSP
Euphorbia polychroma subsp. microsperma (Murb.) Beck	Synonym		WCSP
Euphorbia polyclada Boiss.	Synonym		WCSP
Euphorbia polycnemoides Hochst. ex Boiss.	Accepted		WCSP
Euphorbia polygalifolia Boiss. & Reut.	Accepted		WCSP
Euphorbia polygalifolia subsp. hirta (Lange) M.Laínz	Accepted		WCSP
Euphorbia polygalifolia var. hirta Lange	Synonym		WCSP
Euphorbia polygalifolia subsp. mariolensis (Rouy) Mateo & Figuerola	Synonym		WCSP
Euphorbia polygona Haw.	Accepted		WCSP
Euphorbia polygonata Lodd. [Invalid]	Synonym		WCSP
Euphorbia polygonifolia L.	Accepted		WCSP
Euphorbia polygonisperma Gren. & Godr.	Synonym		WCSP
Euphorbia polyphylla Engelm. ex Holz.	Accepted		WCSP
Euphorbia polytimetica (Prokh.) Prokh.	Synonym		WCSP
Euphorbia pomiformis Thunb.	Synonym		WCSP
Euphorbia ponderosa S.Carter	Accepted		WCSP
Euphorbia pondii Millsp.	Accepted		WCSP
Euphorbia pontica Prokh.	Synonym		WCSP
Euphorbia popayanensis Pax	Accepted		WCSP
Euphorbia × popovii Rotschild	Accepted		WCSP
Euphorbia porphyrantha Phil.	Accepted		WCSP
Euphorbia porphyrastra Hand.-Mazz.	Synonym		WCSP
Euphorbia porteriana (Small) Oudejans	Accepted		WCSP
Euphorbia porteriana var. keyensis (Small) Oudejans	Synonym		WCSP
Euphorbia porteriana var. scoparia (Small) Oudejans	Synonym		WCSP
Euphorbia portlandica L.	Accepted		WCSP
Euphorbia portlandica subsp. tetraceras (Lange) Nyman	Synonym		WCSP
Euphorbia portoricensis Urb.	Synonym		WCSP
Euphorbia portoricensis var. albescens Urb.	Synonym		WCSP
Euphorbia portucasadiana (Croizat) Subils	Accepted		WCSP
Euphorbia portulacoides L.	Accepted		WCSP
Euphorbia portulacoides Spreng.	Synonym		TRO
Euphorbia portulacoides var. acutifolia Boiss.	Synonym		WCSP
Euphorbia portulacoides var. andensis Croizat	Synonym		WCSP
Euphorbia portulacoides var. bridgesii Boiss.	Synonym		WCSP
Euphorbia portulacoides var. collina (Phil.) Croizat	Synonym		WCSP
Euphorbia portulacoides subsp. collina (Phil.) Croizat	Accepted		WCSP
Euphorbia portulacoides var. glabra Phil.	Synonym		WCSP
Euphorbia portulacoides var. glaucescens Chodat & Wilczek	Synonym		WCSP
Euphorbia portulacoides var. major Müll.Arg.	Synonym		WCSP
Euphorbia portulacoides subsp. major (Müll.Arg.) Croizat	Accepted		WCSP
Euphorbia portulacoides var. minor Hicken	Synonym		WCSP
Euphorbia portulacoides subsp. nahuelhuapina Croizat	Synonym		WCSP
Euphorbia portulacoides var. obtusifolia Müll.Arg.	Synonym		WCSP
Euphorbia portulacoides var. porphyrantha Kuntze	Synonym		WCSP
Euphorbia portulacoides subsp. portulacoides	Accepted		WCSP
Euphorbia portulacoides var. portulacoides	Unresolved		TRO
Euphorbia portulacoides var. spathulata Chodat & Wilczek	Synonym		WCSP
Euphorbia portulacoides var. trinervia Boiss.	Synonym		WCSP
Euphorbia portulacoides var. xanthantha Kuntze	Synonym		WCSP
Euphorbia portulana S.Watson	Synonym		WCSP
Euphorbia postii Boiss.	Synonym		WCSP
Euphorbia potaninii Prokh.	Accepted		WCSP
Euphorbia potentilloides Boiss.	Accepted		WCSP
Euphorbia potosina Fernald	Accepted		WCSP
Euphorbia potosina var. lamasis Carvajal & Lomelí	Synonym		WCSP
Euphorbia pouzolzii Loisel.	Synonym		WCSP
Euphorbia praecox (Boiss.) Fisch. ex Grossh.	Accepted		WCSP
Euphorbia pratensis Gromov [Unplaced]	Unresolved		WCSP
Euphorbia preslii Spruner ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia preslii Guss.	Synonym		WCSP
Euphorbia preslii var. andicola Danguy & Cherm.	Synonym		WCSP
Euphorbia preussii Pax	Synonym		WCSP
Euphorbia prieuriana Baill.	Synonym		WCSP
Euphorbia primulifolia Baker	Accepted		WCSP
Euphorbia proballyana L.C.Leach	Accepted		WCSP
Euphorbia procera M.Bieb.	Accepted		WCSP
Euphorbia procera var. trichocarpa W.D.J.Koch	Synonym		WCSP
Euphorbia procera var. trichocarpa Koch	Synonym		TRO
Euphorbia procera var. tuberculata W.D.J.Koch	Synonym		WCSP
Euphorbia × procopianii Savul. & Rayss	Accepted		WCSP
Euphorbia proctorii (D.G.Burch) Correll	Accepted		WCSP
Euphorbia procumbens Mill.	Accepted		WCSP
Euphorbia procumbens Meerb. [Illegitimate]	Synonym		WCSP
Euphorbia procumbens DC. [Illegitimate]	Synonym		WCSP
Euphorbia procumbens sensu N. E. Br. 1925	Synonym		TRO
Euphorbia prokhanovii Popov	Synonym		WCSP
Euphorbia prolifera Ehrenb. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia prolifera Buch.-Ham. ex D.Don	Accepted		WCSP
Euphorbia promecocarpa Davis	Accepted		WCSP
Euphorbia prona S.Carter	Accepted		WCSP
Euphorbia propinqua R.Br. ex N.E.Br.	Synonym		WCSP
Euphorbia prorepens Popov	Synonym		WCSP
Euphorbia prostrata Burch. ex Hemsl. [Invalid]	Synonym		WCSP
Euphorbia prostrata Aiton	Accepted		WCSP
Euphorbia prostrata var. caudirhiza Fosberg	Synonym		WCSP
Euphorbia prostrata var. vestita Engelm. ex Boiss.	Synonym		WCSP
Euphorbia proteifolia Boiss.	Synonym		WCSP
Euphorbia provincialis Willd.	Synonym		WCSP
Euphorbia provincialis Noë ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia prunifolia Jacq.	Synonym		WCSP
Euphorbia prunifolia var. angustifolia Müll.Arg.	Synonym		WCSP
Euphorbia prunifolia var. repanda Müll.Arg.	Synonym		WCSP
Euphorbia prunifolia f. silvatica Chodat & Hassl.	Synonym		WCSP
Euphorbia przewalskii Prokh.	Synonym		WCSP
Euphorbia psammogeton P.S.Green	Accepted		WCSP
Euphorbia psammophila Ule	Accepted		WCSP
Euphorbia pseudagraria P.A.Smirn.	Synonym		WCSP
Euphorbia pseudoapios Maire & Weiller	Accepted		WCSP
Euphorbia pseudobrachiata Dinter [Illegitimate]	Synonym		WCSP
Euphorbia pseudoburuana P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia pseudocactus A.Berger	Accepted		WCSP
Euphorbia pseudochamaesyce Fisch. & C.A.Mey.	Synonym		WCSP
Euphorbia pseudochamaesyce f. pilosa (Thell.) Kitag.	Synonym		WCSP
Euphorbia pseudocyparissias Jord.	Synonym		WCSP
Euphorbia pseudodendroides H.Lindb.	Synonym		WCSP
Euphorbia pseudoduseimata A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia pseudoengleri Pax	Synonym		WCSP
Euphorbia × pseudoesula Schur	Accepted		WCSP
Euphorbia pseudofalcata Chiov.	Accepted		WCSP
Euphorbia pseudofulva Miranda	Accepted		WCSP
Euphorbia × pseudoglareosa Klokov	Synonym		WCSP
Euphorbia pseudoglobosa Marloth	Accepted		WCSP
Euphorbia pseudograeca Grossh.	Synonym		WCSP
Euphorbia pseudograntii Bruyns [Illegitimate]	Synonym		WCSP
Euphorbia pseudograntii Pax	Accepted		WCSP
Euphorbia pseudohirsuta Bruyns	Accepted		WCSP
Euphorbia pseudoholstii Pax	Synonym		WCSP
Euphorbia pseudohypogaea Dinter	Accepted		WCSP
Euphorbia pseudolaevis Bruyns	Accepted		WCSP
Euphorbia × pseudolucida Schur	Accepted		WCSP
Euphorbia pseudomollis Bruyns	Accepted		WCSP
Euphorbia pseudonervosa Bruyns	Synonym		WCSP
Euphorbia pseudonudicaulis Bruyns	Accepted		WCSP
Euphorbia pseudonutans Thell.	Synonym		WCSP
Euphorbia pseudonutans var. hirsuta (Torr.) Farw.	Synonym		WCSP
Euphorbia pseudopeplus Speg.	Synonym		WCSP
Euphorbia pseudopetiolata Bruyns	Accepted		WCSP
Euphorbia pseudoracemosa (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia pseudoracemosa var. lorifolia (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia pseudosaxatilis Kanitz	Synonym		WCSP
Euphorbia pseudoserpyllifolia Millsp.	Synonym		WCSP
Euphorbia pseudoserpyllifolia f. villosa J.T.Howell	Synonym		WCSP
Euphorbia pseudosikkimensis (Hurus. & Yu.Tanaka) Radcl.-Sm.	Accepted		WCSP
Euphorbia pseudosimplex Bruyns	Accepted		WCSP
Euphorbia pseudosororia (Prokh.) Grossh.	Synonym		WCSP
Euphorbia pseudostellata Bruyns	Accepted		WCSP
Euphorbia pseudotrinervis Bruyns	Accepted		WCSP
Euphorbia pseudotuberosa Pax	Accepted		WCSP
Euphorbia pseudovillosa Klokov [Illegitimate]	Synonym		WCSP
Euphorbia × pseudovillosa Prodán	Accepted		WCSP
Euphorbia × pseudovirgata (Schur) Soó	Unresolved		WCSP
Euphorbia pseudovolkensii Bruyns	Accepted		WCSP
Euphorbia pteroclada L.C.Leach	Accepted		WCSP
Euphorbia pterococca Brot.	Accepted		WCSP
Euphorbia pterococca var. pilosa Lazare & Charpin	Synonym		WCSP
Euphorbia pteroneura A.Berger	Accepted		WCSP
Euphorbia pteroneura var. macdougalliana Croizat	Synonym		WCSP
Euphorbia pubentissima Michx.	Accepted		WCSP
Euphorbia pubentissima var. glabrata Boiss.	Synonym		WCSP
Euphorbia pubera Blume	Synonym		WCSP
Euphorbia puberula Fernald	Synonym		WCSP
Euphorbia pubescens Vahl	Synonym		WCSP
Euphorbia pubescens var. crispata (Willd. ex Hornem.) Boiss.	Synonym		WCSP
Euphorbia pubescens var. glabrescens St.-Lag.	Synonym		WCSP
Euphorbia pubescens var. glabriflora (Vis.) Nyman	Synonym		WCSP
Euphorbia pubescens var. grabrescens St.-Lag.	Synonym		TRO
Euphorbia pubescens var. laevis Merino	Synonym		WCSP
Euphorbia pubescens var. leucotricha (Boiss.) Boiss.	Synonym		WCSP
Euphorbia pubescens var. serrata Lojac.	Synonym		WCSP
Euphorbia pubescens var. subglabra Gren. & Godr.	Synonym		WCSP
Euphorbia pubescens f. subglabra (Gren. & Godr.) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia pubicaulis S.Moore	Accepted		WCSP
Euphorbia pubigera Friv. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia pubiglans N.E.Br.	Accepted		WCSP
Euphorbia pudibunda (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia pudibunda var. lanata (S.Carter) Bruyns	Accepted		WCSP
Euphorbia pudibunda var. rotundifolia (Malaisse & Lecron) Bruyns	Accepted		WCSP
Euphorbia pueblensis Brandegee	Accepted		WCSP
Euphorbia pugniformis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia pulchella Sessé & Moc. [Illegitimate]	Synonym		WCSP
Euphorbia pulchella Brouss. ex DC. [Illegitimate]	Synonym		WCSP
Euphorbia pulchella Kunth [Illegitimate]	Synonym		WCSP
Euphorbia pulchella Lag. & Rodr.	Synonym		WCSP
Euphorbia pulcherrima Willd. ex Klotzsch	Accepted		WCSP
Euphorbia pulcherrima f. lutea Standl.	Synonym		WCSP
Euphorbia pulverulenta Kit.	Synonym		WCSP
Euphorbia pulvinata Marloth	Accepted		WCSP
Euphorbia pumicicola Huft	Accepted		WCSP
Euphorbia pumila Sibth. & Sm.	Synonym		WCSP
Euphorbia pumila Pall. ex Ledeb. [Illegitimate]	Synonym		WCSP
Euphorbia punctata Krock. [Illegitimate]	Synonym		WCSP
Euphorbia punctata Delile	Accepted		WCSP
Euphorbia punctulata Andersson	Accepted		WCSP
Euphorbia pungens Banks & Sol. [Illegitimate]	Synonym		WCSP
Euphorbia pungens Lam.	Synonym		WCSP
Euphorbia punicea Sw.	Accepted		WCSP
Euphorbia purisimana Millsp.	Synonym		WCSP
Euphorbia purpurascens Deysson [Illegitimate]	Synonym		WCSP
Euphorbia purpurascens Salzm. ex Ball [Illegitimate]	Synonym		WCSP
Euphorbia purpurascens Schousb.	Synonym		WCSP
Euphorbia purpurascens Schumach. & Thonn. [Illegitimate]	Synonym		WCSP
Euphorbia purpurata Thuill.	Synonym		WCSP
Euphorbia purpurata var. elliptica Pers.	Synonym		WCSP
Euphorbia purpurea (Raf.) Fernald	Accepted		WCSP
Euphorbia purpureomaculata T.J.Feng & J.X.Huang	Synonym		WCSP
Euphorbia pusilla Lag.	Synonym		WCSP
Euphorbia pusillima Post	Synonym		WCSP
Euphorbia pycnanthema Engelm.	Synonym		WCSP
Euphorbia pycnanthema f. serrata Millsp.	Synonym		WCSP
Euphorbia pycnophylla K.Koch	Synonym		WCSP
Euphorbia pycnostegia Boiss.	Accepted		WCSP
Euphorbia pycnostegia var. laxa Boiss.	Synonym		WCSP
Euphorbia pycnostegia var. zornioides (Boiss.) Santapau	Synonym		WCSP
Euphorbia pygmaea Fisch. & C.A.Mey. ex Ledeb.	Synonym		WCSP
Euphorbia pygmaea Phil. [Illegitimate]	Synonym		WCSP
Euphorbia pygmaea Fisch. & C.A. Mey. ex Boiss.	Synonym		TRO
Euphorbia pyrenaica Jord.	Accepted		WCSP
Euphorbia pyrifolia Lam.	Accepted		WCSP
Euphorbia pyrifolia var. pyrifolia	Accepted		WCSP
Euphorbia pyriformis N.E.Br.	Synonym		WCSP
Euphorbia pythinsa Friv. ex Nyman [Illegitimate]	Synonym		WCSP
Euphorbia qarad Deflers	Accepted		WCSP
Euphorbia quadrangularis Pax	Accepted		WCSP
Euphorbia quadrata Nel	Accepted		WCSP
Euphorbia quadrialata Pax	Accepted		WCSP
Euphorbia quadrilatera L.C.Leach	Accepted		WCSP
Euphorbia quadrispina S.Carter	Accepted		WCSP
Euphorbia quaitensis S.Carter	Accepted		WCSP
Euphorbia quartziticola Leandri	Accepted		WCSP
Euphorbia quinquecostata Volkens	Accepted		WCSP
Euphorbia quinqueradiata Kitam.	Synonym		WCSP
Euphorbia quintasii Pax	Synonym		WCSP
Euphorbia quitensis Boiss.	Accepted		WCSP
Euphorbia rablensis Wulfen ex Schrank	Synonym		WCSP
Euphorbia racemosa E.Mey. ex Boiss.	Synonym		WCSP
Euphorbia racemosa Tausch ex Rchb. [Illegitimate]	Synonym		WCSP
Euphorbia radians Benth.	Accepted		WCSP
Euphorbia radians var. stormiae (Croizat) Rzed. & Calderón	Accepted		WCSP
Euphorbia radiata E.Mey. ex Boiss.	Synonym		WCSP
Euphorbia radiata Thunb.	Synonym		WCSP
Euphorbia radicans Moric. ex Klotzsch & Garcke [Illegitimate]	Synonym		WCSP
Euphorbia radiifera L.C.Leach	Accepted		WCSP
Euphorbia radioloides Boiss.	Accepted		WCSP
Euphorbia radioloides var. rubra Millsp.	Synonym		WCSP
Euphorbia radlkoferi Oudejans	Unresolved		WCSP
Euphorbia rafinesquei Greene	Synonym		WCSP
Euphorbia ragusana Rchb.	Synonym		WCSP
Euphorbia ramanensis Baum	Synonym		WCSP
Euphorbia ramiglans N.E.Br.	Accepted		WCSP
Euphorbia ramipressa Croizat	Accepted		WCSP
Euphorbia ramofraga Denis & Humbert ex Leandri	Accepted		WCSP
Euphorbia ramosa Seaton	Accepted		WCSP
Euphorbia ramosa var. villosior Greenm.	Synonym		WCSP
Euphorbia ramosissima Loisel.	Synonym		WCSP
Euphorbia ramosissima Hook. & Arn. [Illegitimate]	Synonym		WCSP
Euphorbia ramulosa L.C.Leach	Accepted		WCSP
Euphorbia randrianijohanyi Haevermans & Labat	Accepted		WCSP
Euphorbia rangeana Dinter ex Jacobsen [Invalid]	Synonym		WCSP
Euphorbia rangovalensis Leandri	Accepted		WCSP
Euphorbia raphanorrhiza (Millsp.) J.F.Macbr.	Accepted		WCSP
Euphorbia raphilippii Oudejans	Accepted		WCSP
Euphorbia rapulum Kar. & Kir.	Accepted		WCSP
Euphorbia rattanii S.Watson	Synonym		WCSP
Euphorbia rauhii Haevermans & Labat	Accepted		WCSP
Euphorbia razafindratsirae Lavranos	Accepted		WCSP
Euphorbia razafinjohanyi Ursch & Leandri	Accepted		WCSP
Euphorbia reboudiana Coss. ex Batt. & Trab.	Synonym		WCSP
Euphorbia reboudiana Coss.	Synonym		TRO
Euphorbia rechingeri Greuter	Synonym		WCSP
Euphorbia reclinata P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia reconciliationis Radcl.-Sm.	Accepted		WCSP
Euphorbia recta Klotzsch	Synonym		WCSP
Euphorbia rectirama N.E.Br.	Accepted		WCSP
Euphorbia recurva Hook.f.	Accepted		WCSP
Euphorbia reflexa Formánek [Illegitimate]	Synonym		WCSP
Euphorbia reflexa Spreng. [Unplaced]	Unresolved		WCSP
Euphorbia refracta Lowe	Synonym		WCSP
Euphorbia refugii Croizat	Synonym		WCSP
Euphorbia reghinii (Chiov.) Vollesen	Synonym		WCSP
Euphorbia regina H.Lév.	Synonym		WCSP
Euphorbia regis-jubae J.Gay	Accepted		WCSP
Euphorbia reichenbachiana Willk.	Synonym		WCSP
Euphorbia reichenbachiana Lojac. [Illegitimate]	Synonym		WCSP
Euphorbia reineckei Pax	Accepted		WCSP
Euphorbia reinhardtii Volkens	Synonym		WCSP
Euphorbia reinhardtii var. bilocularis (N.E.Br.) Oudejans	Synonym		WCSP
Euphorbia reinwardtiana Steud.	Synonym		WCSP
Euphorbia remyi A.Gray ex Boiss.	Accepted		WCSP
Euphorbia remyi var. hanaleiensis Sherff	Synonym		WCSP
Euphorbia remyi var. kahiliana Sherff	Synonym		WCSP
Euphorbia remyi var. kauaiensis O.Deg. & Sherff	Synonym		WCSP
Euphorbia remyi var. leptopoda Sherff	Synonym		WCSP
Euphorbia remyi var. lydgatei Sherff	Synonym		WCSP
Euphorbia remyi var. molesta Sherff	Synonym		WCSP
Euphorbia remyi var. olokelensis Skottsb. & Sherff	Synonym		WCSP
Euphorbia remyi var. pteropoda Sherff	Synonym		WCSP
Euphorbia remyi var. wahiawana Sherff	Synonym		WCSP
Euphorbia remyi var. waimeana Sherff	Synonym		WCSP
Euphorbia remyi var. wilkesii Sherff	Synonym		WCSP
Euphorbia reniformis Blume	Accepted		WCSP
Euphorbia renneyi (S.Carter) Bruyns	Accepted		WCSP
Euphorbia renouardii Pax	Synonym		WCSP
Euphorbia repanda (Haw.) Sweet	Accepted		WCSP
Euphorbia repens K.Koch	Accepted		WCSP
Euphorbia repetita Hochst. ex A.Rich.	Accepted		WCSP
Euphorbia reptans P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia requienii Lojac.	Synonym		WCSP
Euphorbia requienii var. dianthifolia Lojac.	Synonym		WCSP
Euphorbia resinifera O.Berg	Accepted		WCSP
Euphorbia resinifera var. chlorosoma Croizat	Synonym		WCSP
Euphorbia restiacea Benth.	Accepted		WCSP
Euphorbia restituta N.E.Br.	Accepted		WCSP
Euphorbia restricta R.A.Dyer	Accepted		WCSP
Euphorbia retroscabra S.Watson	Synonym		WCSP
Euphorbia retrospina Rauh & Gerold	Accepted		WCSP
Euphorbia retusa (L.) Cav. [Illegitimate]	Synonym		WCSP
Euphorbia retusa Forssk.	Accepted		WCSP
Euphorbia reuteriana Boiss.	Accepted		WCSP
Euphorbia revoluta Engelm.	Accepted		WCSP
Euphorbia rhabdodes Boiss.	Accepted		WCSP
Euphorbia rhabdotosperma Radcl.-Sm.	Accepted		WCSP
Euphorbia rhipsaloides Lem.	Synonym		WCSP
Euphorbia rhipsaloides Willd.	Synonym		TRO
Euphorbia rhizophora (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia rhombea Willd. ex Link	Synonym		WCSP
Euphorbia rhombifolia Boiss.	Accepted		WCSP
Euphorbia rhombifolia var. cymosa N.E. Br.	Synonym		TRO
Euphorbia rhombifolia var. laxa N.E. Br.	Synonym		TRO
Euphorbia rhombifolia var. triceps N.E. Br.	Synonym		TRO
Euphorbia rhytidosperma Boiss. & Balansa	Accepted		WCSP
Euphorbia rhytisperma (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia riae Pax & K.Hoffm.	Synonym		WCSP
Euphorbia richardiana Baill.	Synonym		WCSP
Euphorbia richardsiae L.C.Leach	Accepted		WCSP
Euphorbia ridleyi Croizat	Accepted		WCSP
Euphorbia riebeckii Pax	Accepted		WCSP
Euphorbia riedeliana Boiss.	Synonym		WCSP
Euphorbia rigens Sweet	Synonym		WCSP
Euphorbia rigida Loisel. [Illegitimate]	Synonym		WCSP
Euphorbia rigida M.Bieb.	Accepted		WCSP
Euphorbia rigida var. mauretanica (Maire) Oudejans	Synonym		WCSP
Euphorbia rigidula Steud.	Synonym		WCSP
Euphorbia rigoi Boiss. ex Freyn	Synonym		WCSP
Euphorbia rimarum Coss. & Balansa	Accepted		WCSP
Euphorbia rinconis M.E.Jones	Synonym		WCSP
Euphorbia riparia Jord.	Synonym		WCSP
Euphorbia ritchiei (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia ritchiei subsp. marsabitensis (S.Carter) Bruyns	Accepted		WCSP
Euphorbia ritchiei subsp. nyambensis (S.Carter) Bruyns	Accepted		WCSP
Euphorbia rivae Pax	Accepted		WCSP
Euphorbia rivasii P.Palau	Synonym		WCSP
Euphorbia rivularis A.Heller	Synonym		WCSP
Euphorbia robbiae Turrill	Synonym		WCSP
Euphorbia robecchii Pax	Accepted		WCSP
Euphorbia robivelonae Rauh	Accepted		WCSP
Euphorbia robusta (Engelm.) Small	Synonym		WCSP
Euphorbia robusta var. interioris Norton	Synonym		WCSP
Euphorbia rochaensis (Croizat) Alonso Paz & Marchesi	Accepted		WCSP
Euphorbia rochebrunei Franch. & Sav.	Synonym		WCSP
Euphorbia rockii C.N.Forbes	Accepted		WCSP
Euphorbia rockii var. grandiflora (Hillebr.) Oudejans	Synonym		WCSP
Euphorbia roemeriana Scheele	Accepted		WCSP
Euphorbia roeseri (Boiss.) Halácsy	Synonym		WCSP
Euphorbia rogeri N.E.Br.	Synonym		WCSP
Euphorbia rohlenae Velen.	Accepted		WCSP
Euphorbia roschanica (Ikonn.) Czerep.	Accepted		WCSP
Euphorbia rosea Retz.	Accepted		WCSP
Euphorbia rosescens E.L.Bridges & Orzell	Accepted		WCSP
Euphorbia rossiana Pax	Accepted		WCSP
Euphorbia rossica P.A.Smirn.	Synonym		WCSP
Euphorbia rossii Rauh & Buchloh	Accepted		WCSP
Euphorbia rosularis Fed.	Accepted		WCSP
Euphorbia rosularis A. Theod.	Unresolved		TRO
Euphorbia rothiana Spreng.	Accepted		WCSP
Euphorbia rothiana var. pubescens (Boiss.) Oudejans	Synonym		WCSP
Euphorbia rothiana var. wightiana (Boiss.) Oudejans	Synonym		WCSP
Euphorbia rothrockii (Millsp.) Oudejans	Accepted		WCSP
Euphorbia rotundata Hochst.	Synonym		WCSP
Euphorbia rotundifolia (Lam.) Loisel.	Synonym		WCSP
Euphorbia rotundifolia Hook. & Arn. [Illegitimate]	Synonym		WCSP
Euphorbia rowlandii R.A.Dyer	Accepted		WCSP
Euphorbia royleana Boiss.	Accepted		WCSP
Euphorbia rubella Pax	Accepted		WCSP
Euphorbia rubens Chaix	Synonym		WCSP
Euphorbia rubescens Link	Synonym		WCSP
Euphorbia rubicunda Blume	Synonym		WCSP
Euphorbia rubida Greenm.	Synonym		WCSP
Euphorbia rubra Cav.	Synonym		WCSP
Euphorbia rubricaulis Regel	Synonym		WCSP
Euphorbia rubriflora N.E.Br.	Accepted		WCSP
Euphorbia rubriflora H.Lév. [Illegitimate]	Synonym		WCSP
Euphorbia rubriseminalis S.Carter ex Boulos	Accepted		WCSP
Euphorbia rubrispinosa S.Carter	Accepted		WCSP
Euphorbia rubromarginata L.E.Newton	Accepted		WCSP
Euphorbia rubrosperma Lotsy	Synonym		WCSP
Euphorbia rubrostriata Drake	Synonym		WCSP
Euphorbia ruderalis Dumort.	Synonym		WCSP
Euphorbia ruderalis Scheele [Illegitimate]	Synonym		WCSP
Euphorbia rudis N.E.Br.	Accepted		WCSP
Euphorbia rudolfii N.E.Br.	Accepted		WCSP
Euphorbia ruegeliana Shuttlew. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia ruficeps S.Carter	Accepted		WCSP
Euphorbia rugosa Kit. [Illegitimate]	Synonym		WCSP
Euphorbia rugosiflora L.C.Leach	Accepted		WCSP
Euphorbia rugosissima Pau & Font Quer	Synonym		WCSP
Euphorbia rugulosa (Engelm. ex Millsp.) Greene	Synonym		WCSP
Euphorbia ruiziana (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia ruizlealii Subils	Accepted		WCSP
Euphorbia rumelica Formánek	Synonym		WCSP
Euphorbia rumicifolia Boiss.	Synonym		WCSP
Euphorbia rupestris C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia rupestris Larrañaga [Illegitimate]	Synonym		WCSP
Euphorbia rupicola Scheele [Illegitimate]	Synonym		WCSP
Euphorbia rupicola Boiss.	Synonym		WCSP
Euphorbia rupicola var. clementei (Boiss.) Pau	Synonym		WCSP
Euphorbia rupicola var. major Boiss.	Synonym		WCSP
Euphorbia rusbyi Greene	Synonym		WCSP
Euphorbia ruscifolia (Boiss.) N.E.Br.	Accepted		WCSP
Euphorbia ruscinonensis Boiss.	Synonym		WCSP
Euphorbia ruspolii Chiov.	Synonym		WCSP
Euphorbia rutilis (Millsp.) Standl. & Steyerm.	Accepted		WCSP
Euphorbia rzedowskii McVaugh	Accepted		WCSP
Euphorbia sabulicola Boiss.	Accepted		WCSP
Euphorbia saccharata Boiss.	Accepted		WCSP
Euphorbia sacchii Chiov.	Synonym		WCSP
Euphorbia sachetiana (J.Florence) Govaerts	Accepted		WCSP
Euphorbia sagittaria Marloth	Synonym		WCSP
Euphorbia sagraeana A.Rich. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia sahendi Bornm.	Accepted		WCSP
Euphorbia sajanensis (Boiss.) Baikov	Synonym		WCSP
Euphorbia sakarahaensis Rauh	Accepted		WCSP
Euphorbia salicetorum Jord.	Synonym		WCSP
Euphorbia salicifolia Host	Accepted		WCSP
Euphorbia salicifolia var. angustata Rochel	Synonym		WCSP
Euphorbia salicifolia var. incana (Schur) Nyman	Synonym		WCSP
Euphorbia salicifolia var. legetima Schur	Synonym		WCSP
Euphorbia salicifolia f. pseudosalicifolia (Schur) Oudejans	Synonym		WCSP
Euphorbia salicifolia var. pseudosalicifolia Schur	Synonym		WCSP
Euphorbia salicifolia subsp. schurii (Simonk.) Nyman	Unresolved		WCSP
Euphorbia salina Willd. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia salota Leandri	Accepted		WCSP
Euphorbia salsicola S.Carter	Accepted		WCSP
Euphorbia salsuginosa (McVaugh) Radcl.-Sm. & Govaerts	Accepted		WCSP
Euphorbia samburuensis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia sampsonii Hance	Synonym		WCSP
Euphorbia sanasunitensis Hand.-Mazz.	Accepted		WCSP
Euphorbia sancta Pax	Synonym		WCSP
Euphorbia sanctae-catharinae Fayed	Accepted		WCSP
Euphorbia sanguinea Hochst. & Steud. ex Benth. [Illegitimate]	Synonym		WCSP
Euphorbia sanguinea Thore	Synonym		WCSP
Euphorbia sanguinea Boiss.	Synonym		TRO
Euphorbia sanguinea Klotzsch & Garcke	Synonym		TRO
Euphorbia sanguinea var. intermedia Boiss.	Synonym		WCSP
Euphorbia sanguinea var. jemenica Schweinf.	Synonym		WCSP
Euphorbia sanguinea var. nilagirica (Miq.) Boiss.	Synonym		WCSP
Euphorbia sanguinea var. setigera (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia sanmartensis Rusby	Accepted		WCSP
Euphorbia santapaui A.N.Henry	Accepted		WCSP
Euphorbia santolinaefolia Kunth	Unresolved		TRO
Euphorbia sapiifolia Baill.	Synonym		WCSP
Euphorbia sapinii De Wild.	Accepted		WCSP
Euphorbia saratoi Ardoino	Synonym		WCSP
Euphorbia sarawschanica Regel	Accepted		WCSP
Euphorbia sarcodes Boiss.	Accepted		WCSP
Euphorbia sarcostemmatoides Dinter	Accepted		WCSP
Euphorbia sarcostemmoides J.H.Willis	Accepted		WCSP
Euphorbia sareciana M.G.Gilbert	Accepted		WCSP
Euphorbia sareptana Becker	Accepted		WCSP
Euphorbia sarmentosa Welw. ex Pax	Accepted		WCSP
Euphorbia satureioides Lam.	Synonym		WCSP
Euphorbia saudiarabica Fayed & Al-Zahrani	Accepted		WCSP
Euphorbia sauliana Boreau ex Boiss.	Synonym		WCSP
Euphorbia saurica Baikov	Accepted		WCSP
Euphorbia savaryi Kiss	Synonym		WCSP
Euphorbia saxatilis Jacq.	Accepted		WCSP
Euphorbia saxatilis var. carnica Boiss.	Synonym		WCSP
Euphorbia saxicola Radcl.-Sm.	Accepted		WCSP
Euphorbia saxorum P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia scabrella Boiss.	Synonym		WCSP
Euphorbia scabrifolia Kurz	Accepted		WCSP
Euphorbia scandens Kunth	Accepted		WCSP
Euphorbia scarlatina S.Carter	Accepted		WCSP
Euphorbia scatorhiza S.Carter	Accepted		WCSP
Euphorbia schaeferi Dinter	Synonym		WCSP
Euphorbia schaijesii (Malaisse) Bruyns	Accepted		WCSP
Euphorbia scheffleri Pax	Accepted		WCSP
Euphorbia schickendantzii Hieron.	Accepted		WCSP
Euphorbia schiedeana Mayfield	Unresolved		TRO
Euphorbia schillingii Radcl.-Sm.	Accepted		WCSP
Euphorbia schillingii var. praecox A.D.Schill. ex Radcl.-Sm.	Synonym		WCSP
Euphorbia schimperi C.Presl	Accepted		WCSP
Euphorbia schimperiana Hochst. ex A.Rich. [Illegitimate]	Synonym		WCSP
Euphorbia schimperiana Scheele	Accepted		WCSP
Euphorbia schimperiana var. buchananii (Pax) N.E.Br.	Synonym		WCSP
Euphorbia schimperiana var. pubescens (N.E.Br.) S.Carter	Accepted		WCSP
Euphorbia schimperiana var. schimperiana	Accepted		WCSP
Euphorbia schimperiana var. trilobata Chiov.	Synonym		WCSP
Euphorbia schimperiana var. velutina N.E.Br.	Accepted		WCSP
Euphorbia schinzii Pax	Accepted		WCSP
Euphorbia schizacantha Pax	Accepted		WCSP
Euphorbia schizadenia Boiss. & Hohen. [Illegitimate]	Synonym		WCSP
Euphorbia schizoceras Boiss.	Synonym		WCSP
Euphorbia schizoclada Baill. ex Poiss. [Unplaced]	Unresolved		WCSP
Euphorbia schizolepis F.Muell. ex Boiss.	Accepted		WCSP
Euphorbia schizolepis var. glabra Benth.	Synonym		WCSP
Euphorbia schizoloba Engelm.	Accepted		WCSP
Euphorbia schizoloba var. mollis Norton	Synonym		WCSP
Euphorbia schlechtendalii Boiss.	Accepted		WCSP
Euphorbia schlechtendalii var. schlechtendalii	Accepted		WCSP
Euphorbia schlechteri Pax	Accepted		WCSP
Euphorbia schleinitzii Engl. ex Pax [Unplaced]	Unresolved		WCSP
Euphorbia schmitzii L.C.Leach	Accepted		WCSP
Euphorbia schoenlandii Pax	Accepted		WCSP
Euphorbia schottiana Boiss.	Accepted		WCSP
Euphorbia schubei Pax	Accepted		WCSP
Euphorbia schugnanica B.Fedtsch.	Accepted		WCSP
Euphorbia schultzii Benth.	Accepted		WCSP
Euphorbia schumannii Radcl.-Sm.	Accepted		WCSP
Euphorbia × schurii Simonk.	Unresolved		WCSP
Euphorbia schweinfurthii Balf.f.	Accepted		WCSP
Euphorbia sciadophila Boiss.	Accepted		WCSP
Euphorbia sciadophila f. orbicularis Chodat & Hassl.	Synonym		WCSP
Euphorbia scitula L.C.Leach	Accepted		WCSP
Euphorbia sclerocyathium Korovin & Popov	Accepted		WCSP
Euphorbia sclerophylla Boiss.	Accepted		WCSP
Euphorbia sclerophylla var. myrtifolia Boiss.	Synonym		WCSP
Euphorbia sclerophylla var. ruscifolia Boiss.	Synonym		WCSP
Euphorbia scolopendrea Haw.	Synonym		WCSP
Euphorbia scoparia N.E.Br.	Synonym		WCSP
Euphorbia scopiformis (Klotzsch & Garcke) Boiss.	Synonym		WCSP
Euphorbia scopoliana Steud.	Synonym		WCSP
Euphorbia scopulorum Brandegee	Accepted		WCSP
Euphorbia scopulorum var. inornata M.C.Johnst.	Synonym		WCSP
Euphorbia scopulorum var. nuda M.C.Johnst.	Synonym		WCSP
Euphorbia scordiifolia Jacq.	Accepted		WCSP
Euphorbia scordioides Deflers ex Blatter [Unplaced]	Unresolved		WCSP
Euphorbia scotana (Schltdl.) Boiss.	Synonym		TRO
Euphorbia scotanum Schltdl.	Synonym		WCSP
Euphorbia scotanum var. yavalquahuitl Boiss.	Synonym		WCSP
Euphorbia scripta Sommier & Levier	Accepted		WCSP
Euphorbia scutiformis V.W.Steinm. & P.E.Berry	Accepted		WCSP
Euphorbia scyphadena S.Carter	Accepted		WCSP
Euphorbia sebastinei Binojk. & N.P.Balakr.	Accepted		WCSP
Euphorbia sebsebei M.G.Gilbert	Accepted		WCSP
Euphorbia seclusa N.E.Br.	Synonym		WCSP
Euphorbia seemannii Klotzsch	Synonym		WCSP
Euphorbia segetalis L.	Accepted		WCSP
Euphorbia segetalis subsp. linifolia (Nath. ex L.) Oudejans	Synonym		WCSP
Euphorbia segetalis var. litoralis Lange	Synonym		WCSP
Euphorbia segetalis var. longibracteata (DC.) Steud.	Synonym		WCSP
Euphorbia segetalis var. longibracteata (DC.) Boiss.	Synonym		TRO
Euphorbia segetalis var. pinea (L.) Lange	Accepted		WCSP
Euphorbia segetalis var. portlandica (L.) Fiori	Synonym		WCSP
Euphorbia segetalis var. segetalis	Accepted		WCSP
Euphorbia segetalis var. taurica (Besser) Steud.	Synonym		WCSP
Euphorbia segoviensis (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia seguieri (Scop.) All.	Synonym		WCSP
Euphorbia seguieriana Neck.	Accepted		WCSP
Euphorbia seguieriana var. arenivaga (Martrin-Donos) Oudejans	Synonym		WCSP
Euphorbia seguieriana var. dentata (Chabert) Oudejans	Synonym		WCSP
Euphorbia seguieriana var. firma (Ledeb.) Oudejans	Synonym		WCSP
Euphorbia seguieriana var. gerardiana (Jacq.) Fiori	Synonym		WCSP
Euphorbia seguieriana subsp. hohenackeri (Boiss.) Rech.f.	Accepted		WCSP
Euphorbia seguieriana var. intermedia (Savul.) Oudejans	Synonym		WCSP
Euphorbia seguieriana var. japygica (Ten.) Fiori	Synonym		WCSP
Euphorbia seguieriana var. lanceolata (Cariot) Oudejans	Synonym		WCSP
Euphorbia seguieriana var. latifolia (J.J.Schmitz & Regel) Oudejans	Synonym		WCSP
Euphorbia seguieriana subsp. loiseleurii (Rouy) Greuter & Burdet	Synonym		WCSP
Euphorbia seguieriana var. minor (Duby) Wilczek	Synonym		WCSP
Euphorbia seguieriana var. nicaeensis (All.) Fiori	Synonym		WCSP
Euphorbia seguieriana var. niciciana (Borbás ex Novák) Geltman	Synonym		WCSP
Euphorbia seguieriana subsp. niciciana (Borbás ex Novák) Rech.f.	Accepted		WCSP
Euphorbia seguieriana var. prostrata Fiori	Synonym		WCSP
Euphorbia seguieriana subsp. seguieriana	Accepted		WCSP
Euphorbia seguieriana var. sturii (Holuby) Oudejans	Synonym		WCSP
Euphorbia seguieriana var. virgata Fiori	Synonym		WCSP
Euphorbia seibanica Lavranos & Gifri	Accepted		WCSP
Euphorbia sekukuniensis R.A.Dyer	Accepted		WCSP
Euphorbia seleri Donn.Sm.	Accepted		WCSP
Euphorbia selloi (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia selloi var. setosa Boiss.	Synonym		WCSP
Euphorbia selousiana S.Carter	Accepted		WCSP
Euphorbia semiperfoliata Viv.	Accepted		WCSP
Euphorbia semiverticillata Halácsy	Synonym		WCSP
Euphorbia semivillosa (Prokh.) Krylov	Accepted		WCSP
Euphorbia semperflorens L.C.Leach	Accepted		WCSP
Euphorbia sendaica Makino	Accepted		WCSP
Euphorbia senguptae N.P.Balakr. & Subr.	Accepted		WCSP
Euphorbia senilis Standl. & Steyerm.	Accepted		WCSP
Euphorbia sennenii Pau	Synonym		WCSP
Euphorbia sennii Chiov.	Accepted		WCSP
Euphorbia sepium N.E.Br.	Synonym		WCSP
Euphorbia septemsulcata Vierh.	Accepted		WCSP
Euphorbia septentrionalis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia sepulta P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia sera-comans Bubani	Synonym		WCSP
Euphorbia serbica Formánek	Synonym		WCSP
Euphorbia serendipita L.E.Newton	Accepted		WCSP
Euphorbia seretii De Wild.	Accepted		WCSP
Euphorbia sericocarpa Hand.-Mazz.	Synonym		WCSP
Euphorbia serotina Host	Synonym		WCSP
Euphorbia serpens Kunth	Accepted		WCSP
Euphorbia serpens Balb. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia serpens var. fissistipula Thell.	Synonym		WCSP
Euphorbia serpens f. flexicaulis (Scheele) Thell.	Synonym		WCSP
Euphorbia serpens var. flexicaulis (Scheele) J.M.Coult.	Synonym		WCSP
Euphorbia serpens var. imbricata Boiss.	Synonym		WCSP
Euphorbia serpens var. indica Engelm. ex Boiss.	Synonym		WCSP
Euphorbia serpens var. microphylla Müll.Arg.	Synonym		WCSP
Euphorbia serpens var. montevidensis (Boiss.) Cabrera	Synonym		WCSP
Euphorbia serpens var. ovalifolia (Engelm. ex Klotzsch) Allem	Synonym		WCSP
Euphorbia serpens f. psilocyathia Thell.	Synonym		WCSP
Euphorbia serpens var. radicans Boiss.	Synonym		WCSP
Euphorbia serpentini Novák	Accepted		WCSP
Euphorbia serpicula Hiern	Synonym		WCSP
Euphorbia serpiformis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia serpyllifolia Pers.	Accepted		WCSP
Euphorbia serpyllifolia var. consanguinea Boiss.	Synonym		WCSP
Euphorbia serpyllifolia var. hirtula (Engelm. ex S.Watson) L.C.Wheeler	Synonym		WCSP
Euphorbia serpyllifolia subsp. hirtula (Engelm. ex S.Watson) Oudejans	Accepted		WCSP
Euphorbia serpyllifolia subsp. hirtula (Engelm. ex S. Watson) Koutnik	Synonym		TRO
Euphorbia serpyllifolia var. neomexicana (Greene) Millsp.	Synonym		WCSP
Euphorbia serpyllifolia var. occidentalis (Drew) Jeps.	Synonym		WCSP
Euphorbia serpyllifolia var. rugulosa Engelm. ex Millsp.	Synonym		WCSP
Euphorbia serpyllifolia subsp. serpyllifolia	Accepted		WCSP
Euphorbia serpyllifolia var. serpyllifolia	Unresolved		TRO
Euphorbia serrata L.	Accepted		WCSP
Euphorbia serrata f. phylloclada (Lange) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia serrata var. phylloclada Lange	Synonym		WCSP
Euphorbia serrata f. subacaulis (Rouy) Oudejans	Synonym		WCSP
Euphorbia serrata var. subacaulis Rouy	Synonym		WCSP
Euphorbia serrata var. tenuifolia Pers.	Synonym		WCSP
Euphorbia serrata var. ternata Cout.	Synonym		WCSP
Euphorbia serrata f. ternata (Cout.) Oudejans	Synonym		WCSP
Euphorbia serrata var. truncata Pers.	Synonym		WCSP
Euphorbia serratifolia S.Carter	Accepted		WCSP
Euphorbia serrula Engelm.	Accepted		WCSP
Euphorbia serrulata Vell. [Illegitimate]	Synonym		WCSP
Euphorbia serrulata Thuill.	Synonym		WCSP
Euphorbia serrulata Reinw. ex Blume [Illegitimate]	Synonym		WCSP
Euphorbia serrulata var. pubescens Warb.	Synonym		WCSP
Euphorbia sessei Oudejans	Accepted		WCSP
Euphorbia sessiliflora Boiss. & Spruner [Illegitimate]	Synonym		WCSP
Euphorbia sessiliflora Roxb.	Accepted		WCSP
Euphorbia sessilifolia Klotzsch ex Boiss.	Accepted		WCSP
Euphorbia seticornis Poir.	Synonym		WCSP
Euphorbia setigera E.Mey. [Illegitimate]	Synonym		WCSP
Euphorbia setiloba Engelm. ex Torr.	Accepted		WCSP
Euphorbia setiloba var. dentata Engelm. ex Boiss.	Synonym		WCSP
Euphorbia setiloba var. nodulosa Jeps.	Synonym		WCSP
Euphorbia setispina S.Carter	Accepted		WCSP
Euphorbia setosa (Boiss.) Müll.Arg.	Accepted		WCSP
Euphorbia sewerzowii (Prokh.) Pavlov	Accepted		WCSP
Euphorbia sexangularis Henckel	Synonym		WCSP
Euphorbia shaferi (Millsp.) L.G.Gonzáles & Bisse	Synonym		WCSP
Euphorbia sharkoensis Baill.	Accepted		WCSP
Euphorbia sharmae U.C.Bhattach.	Accepted		WCSP
Euphorbia shebeliensis (M.G.Gilbert) Bruyns	Accepted		WCSP
Euphorbia shetoensis Pax & K.Hoffm.	Synonym		WCSP
Euphorbia shirensis Baker f.	Synonym		WCSP
Euphorbia shouanensis H.Keng	Synonym		WCSP
Euphorbia sibirica Fisch. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia sibthorpii Boiss.	Synonym		WCSP
Euphorbia sieboldiana C.Morren & Decne.	Accepted		WCSP
Euphorbia sieboldiana var. grandifolia (Franch. & Sav. ex Hurus.) Oudejans	Synonym		WCSP
Euphorbia sieboldiana f. idzuensis Hurus.	Synonym		WCSP
Euphorbia sieboldiana var. idzuensis (Hurus.) Oudejans	Synonym		WCSP
Euphorbia sieboldiana var. montana Tatew.	Synonym		WCSP
Euphorbia sieboldiana var. peninsularis (Hurus.) Kitag.	Synonym		WCSP
Euphorbia sieboldiana f. peninsularis Hurus.	Synonym		WCSP
Euphorbia sieboldiana f. sylvatica Hurus.	Synonym		WCSP
Euphorbia sieboldiana var. sylvatica (Hurus.) Oudejans	Synonym		WCSP
Euphorbia sieboldiana f. yezoensis Hurus.	Synonym		WCSP
Euphorbia siguatepequensis Standl.	Synonym		WCSP
Euphorbia sikkimensis Boiss.	Accepted		WCSP
Euphorbia sikkimensis subsp. bhutanica Fisch.	Synonym		WCSP
Euphorbia silenifolia (Haw.) Sweet	Accepted		WCSP
Euphorbia siliciicola Dinter	Synonym		WCSP
Euphorbia similiramea S.Carter	Accepted		WCSP
Euphorbia similis A.Berger	Synonym		WCSP
Euphorbia simplex K.Koch	Synonym		WCSP
Euphorbia simulans (L.C.Wheeler) Warnock & M.C.Johnst.	Accepted		WCSP
Euphorbia sinaica Hochst. ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia sinaloensis Brandegee	Accepted		WCSP
Euphorbia sinanensis (Hurus.) T.Kuros. & H.Ohashi	Synonym		WCSP
Euphorbia sinclairiana Benth.	Accepted		WCSP
Euphorbia sinensis Jesson & Turrill	Synonym		WCSP
Euphorbia sintenisii Boiss. ex Freyn	Accepted		WCSP
Euphorbia sipolisii N.E.Br.	Accepted		WCSP
Euphorbia sistanica Dinelli & De Marco	Synonym		WCSP
Euphorbia skottsbergii Sherff	Accepted		WCSP
Euphorbia skottsbergii var. audens Sherff	Synonym		WCSP
Euphorbia skottsbergii var. kalaeloana Sherff	Synonym		WCSP
Euphorbia skottsbergii var. skottsbergii	Accepted		WCSP
Euphorbia skottsbergii var. vaccinioides Sherff	Accepted		WCSP
Euphorbia sloanei L.C.Wheeler	Synonym		WCSP
Euphorbia smallii Oudejans	Synonym		WCSP
Euphorbia smirnovii Geltman	Accepted		WCSP
Euphorbia smithii S.Carter	Accepted		WCSP
Euphorbia × soanieranensis Ursch & Leandri [Unplaced]	Unresolved		WCSP
Euphorbia socialis Zoll. [Illegitimate]	Synonym		WCSP
Euphorbia socotrana Balf.f.	Accepted		WCSP
Euphorbia sogdiana Popov	Accepted		WCSP
Euphorbia sojakii (Chrtek & Krísa) Dubovik	Accepted		WCSP
Euphorbia soliflora Vis. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia solisequa Rchb.	Synonym		WCSP
Euphorbia somalensis Pax	Accepted		WCSP
Euphorbia somalensis var. nogalensis A.Hässl.	Synonym		WCSP
Euphorbia × somboriensis Prodán	Accepted		WCSP
Euphorbia songweana S.Carter	Accepted		WCSP
Euphorbia sonorae Rose	Accepted		WCSP
Euphorbia soobyi McVaugh	Accepted		WCSP
Euphorbia × sooi T.Simon	Accepted		WCSP
Euphorbia soongarica Boiss.	Accepted		WCSP
Euphorbia soongarica subsp. aristata Prokh. & Kuzm.	Synonym		TRO
Euphorbia soongarica subsp. lamprocarpa (Prokh.) Prokh.	Synonym		WCSP
Euphorbia sororia Schrenk	Accepted		WCSP
Euphorbia × souliei Sennen	Accepted		WCSP
Euphorbia sparrmanii Boiss.	Accepted		WCSP
Euphorbia sparsiflora A.Heller	Accepted		WCSP
Euphorbia sparsiglandulosa Ponert	Accepted		WCSP
Euphorbia spartaria N.E.Br.	Accepted		WCSP
Euphorbia spartiformis Mobayen	Accepted		WCSP
Euphorbia spartioides Jacq.	Synonym		WCSP
Euphorbia spathulata Lam.	Accepted		WCSP
Euphorbia spathulata Commerson	Synonym		TRO
Euphorbia spathulata var. mexicana (Engelm.) Oudejans	Synonym		WCSP
Euphorbia spathulifolia (Haw.) Steud.	Synonym		WCSP
Euphorbia speciosa L.C.Leach	Accepted		WCSP
Euphorbia specksii Rauh	Accepted		WCSP
Euphorbia spectabilis (S.Carter) Bruyns	Accepted		WCSP
Euphorbia sphaerococca Salzm. ex Rchb.	Synonym		WCSP
Euphorbia sphaerorhiza Benth.	Accepted		WCSP
Euphorbia sphaerosperma Shuttlew. ex Boiss.	Synonym		WCSP
Euphorbia spicata E.Mey. ex Boiss.	Accepted		WCSP
Euphorbia spinea N.E.Br.	Accepted		WCSP
Euphorbia spinescens Pax	Synonym		WCSP
Euphorbia spinicapsula Rauh & Petignat	Accepted		WCSP
Euphorbia spinidens Bornm. ex Prokh.	Accepted		WCSP
Euphorbia spinosa L.	Accepted		WCSP
Euphorbia spinosa var. bivonae (Steud.) Fiori	Synonym		WCSP
Euphorbia spinosa var. brachyadenia Boiss.	Synonym		WCSP
Euphorbia spinosa var. inermis Boiss.	Synonym		WCSP
Euphorbia spinosa subsp. ligustica (Fiori) Pignatti	Accepted		WCSP
Euphorbia spinosa f. ligustica Fiori	Synonym		WCSP
Euphorbia spinosa subsp. melitensis (Parl.) Nyman	Synonym		WCSP
Euphorbia spinosa var. melitensis (Parl.) Fiori	Synonym		WCSP
Euphorbia spinosa var. montana (Lojac.) Fiori	Synonym		WCSP
Euphorbia spinosa subsp. spinosa	Accepted		WCSP
Euphorbia spinulosa (S.Carter) Bruyns	Accepted		WCSP
Euphorbia spiralis Balf.f.	Accepted		WCSP
Euphorbia spissa Thulin	Accepted		WCSP
Euphorbia spissiflora S.Carter	Accepted		WCSP
Euphorbia splendens Bojer ex Hook.	Synonym		WCSP
Euphorbia splendens Denis	Synonym		TRO
Euphorbia splendens var. bevilaniensis (Croizat) Leandri	Synonym		WCSP
Euphorbia splendens subsp. bojeri (Hook.) Denis	Synonym		WCSP
Euphorbia splendens var. bojeri (Hook.) Costantin & Gallaud	Synonym		WCSP
Euphorbia splendens var. hislopii (N.E.Br.) Leandri	Synonym		WCSP
Euphorbia splendens var. imperatae Leandri [Invalid]	Synonym		WCSP
Euphorbia spongiosa Ledeb. ex Schrank	Synonym		WCSP
Euphorbia spruceana Boiss.	Accepted		WCSP
Euphorbia squamigera Loisel.	Accepted		WCSP
Euphorbia squamigera var. carthaginiensis (Porta & Rigo) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia squamigera subsp. clementei (Boiss.) Losa & Vindt	Synonym		WCSP
Euphorbia squamigera var. faurei Maire	Synonym		WCSP
Euphorbia squamigera var. mentagensis Maire	Synonym		WCSP
Euphorbia squamigera var. montgoi O.Bolòs & Vigo	Synonym		WCSP
Euphorbia squamigera var. pseudatlantica Maire	Synonym		WCSP
Euphorbia squamigera var. rupicola (Boiss.) Maire	Synonym		WCSP
Euphorbia squamosa Willd.	Accepted		WCSP
Euphorbia squamosa var. serrata (Boiss.) Oudejans	Synonym		WCSP
Euphorbia squamosa var. talyschensis (Boiss. & Buhse) Oudejans	Synonym		WCSP
Euphorbia squamosa var. wilhelmsiana (K.Koch) Oudejans	Synonym		WCSP
Euphorbia squarrosa Haw.	Accepted		WCSP
Euphorbia standleyi (Millsp.) Oudejans	Accepted		WCSP
Euphorbia stanfieldii (Small) Cory	Synonym		WCSP
Euphorbia stapelioides Boiss.	Accepted		WCSP
Euphorbia stapfii A.Berger	Accepted		WCSP
Euphorbia stegmatica Nel	Synonym		WCSP
Euphorbia stellaespina Phillips non Haw.	Synonym		TRO
Euphorbia stellata Willd.	Accepted		WCSP
Euphorbia stellispina Haw.	Accepted		WCSP
Euphorbia stellispina var. astrispina (N.E.Br.) A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia stellulata Salzm.	Synonym		WCSP
Euphorbia × stenocalli Croizat	Accepted		WCSP
Euphorbia stenocaulis Bruyns	Accepted		WCSP
Euphorbia stenoclada Baill.	Accepted		WCSP
Euphorbia stenoclada subsp. ambatofinandranae (Leandri) Cremers	Accepted		WCSP
Euphorbia stenoclada subsp. stenoclada	Accepted		WCSP
Euphorbia stenomeres S.F.Blake	Synonym		WCSP
Euphorbia stenophylla (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia stepposa Zoz ex Prokh.	Accepted		WCSP
Euphorbia stevenii F.M.Bailey	Accepted		WCSP
Euphorbia stevensii A.Stewart	Synonym		WCSP
Euphorbia steyermarkii Standl.	Synonym		WCSP
Euphorbia stictospora Engelm.	Accepted		WCSP
Euphorbia stictospora var. sublaevis M.C.Johnst.	Synonym		WCSP
Euphorbia stictospora var. texensis Millsp.	Synonym		WCSP
Euphorbia stipitata Millsp.	Synonym		WCSP
Euphorbia stipulacea Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia stocksiana Boiss.	Synonym		WCSP
Euphorbia stocksiana var. ovata Boiss.	Synonym		WCSP
Euphorbia stoddartii Fosberg	Accepted		WCSP
Euphorbia stokesii C.N.Forbes	Synonym		WCSP
Euphorbia stolonifera Marloth ex A.C.White, R.A.Dyer & B.Sloane	Accepted		WCSP
Euphorbia stormiae Croizat	Synonym		WCSP
Euphorbia stracheyi Boiss.	Accepted		WCSP
Euphorbia stracheyi var. radiata Hook.f.	Synonym		WCSP
Euphorbia stracheyi subsp. sharmae (U.C.Bhattach.) D.Maity & N.P.Balakr.	Synonym		WCSP
Euphorbia strangulata N.E.Br.	Accepted		WCSP
Euphorbia striata Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia striata Thunb.	Accepted		WCSP
Euphorbia striata var. brachyphylla Boiss.	Synonym		WCSP
Euphorbia striata var. cuspidata Boiss.	Synonym		WCSP
Euphorbia striatella Boiss.	Synonym		WCSP
Euphorbia striatella var. microsciadia (Boiss.) Boiss.	Synonym		WCSP
Euphorbia striatella var. persepolitana (Boiss.) Boiss.	Synonym		WCSP
Euphorbia stricta L.	Accepted		WCSP
Euphorbia stricta var. dubia (Dierb.) Nyman	Synonym		WCSP
Euphorbia stricta subsp. micrantha (Stephan ex Willd.) Nyman	Synonym		WCSP
Euphorbia stricta f. pubescens (Erdner) Oudejans	Synonym		WCSP
Euphorbia stricta var. pubescens Erdner	Synonym		WCSP
Euphorbia strictior Holz.	Accepted		WCSP
Euphorbia strigosa Hook. & Arn.	Accepted		WCSP
Euphorbia strobilifera Dalzell	Synonym		WCSP
Euphorbia stuhlmannii Schweinf. ex Volkens [Illegitimate]	Synonym		WCSP
Euphorbia stuhlmannii Pax	Synonym		WCSP
Euphorbia sturii Holuby ex Velen	Synonym		WCSP
Euphorbia stygiana H.C.Watson	Accepted		WCSP
Euphorbia stygiana subsp. stygiana	Accepted		WCSP
Euphorbia suareziana Croizat	Synonym		WCSP
Euphorbia subamplexicaulis Kar. & Kir.	Accepted		WCSP
Euphorbia subapoda Baill.	Synonym		WCSP
Euphorbia subcaerulea B.L.Rob. & Greenm.	Synonym		WCSP
Euphorbia subcaerulea var. tresmariae Millsp.	Synonym		WCSP
Euphorbia subciliata Pers.	Synonym		WCSP
Euphorbia subcordata (Klotzsch & Garcke) Schur	Synonym		WCSP
Euphorbia subcordata C.A.Mey. ex Ledeb.	Accepted		WCSP
Euphorbia subcordata var. andrachnoides (Schrenk) Trautv. ex O.Fedtsch. & B.Fedtsch.	Synonym		WCSP
Euphorbia subcordata f. obtusifolia Krylov	Synonym		WCSP
Euphorbia subfalcata Hiern	Synonym		WCSP
Euphorbia subhastata Vis. & Pancic	Synonym		WCSP
Euphorbia subhastifolia Klokov	Synonym		WCSP
Euphorbia submamillaris (A.Berger) A.Berger	Accepted		WCSP
Euphorbia suborbicularis Thulin	Unresolved		WCSP (in review)
Euphorbia subpeltata S.Watson	Accepted		WCSP
Euphorbia subpeltatophylla Rauh	Accepted		WCSP
Euphorbia subpubens Engelm.	Synonym		WCSP
Euphorbia subreniformis S.Watson	Synonym		WCSP
Euphorbia subsalsa Hiern	Accepted		WCSP
Euphorbia subsalsa var. kaokoensis A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia subsalsa subsp. subsalsa	Accepted		WCSP
Euphorbia subscandens P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia subserrata Engelm. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia subterminalis N.E.Br.	Accepted		WCSP
Euphorbia subtilis (Prokh.) Prokh.	Synonym		WCSP
Euphorbia subtrifoliata Rusby	Accepted		WCSP
Euphorbia subtuberculata C.A.Mey. ex Boiss.	Synonym		WCSP
Euphorbia subulatifolia Hurus.	Synonym		WCSP
Euphorbia subumbellata Steud. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia succedanea L.C.Wheeler	Accepted		WCSP
Euphorbia succulenta (Schweick.) Bruyns	Accepted		WCSP
Euphorbia succulenta var. congesta (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia succulenta var. succulenta	Accepted		WCSP
Euphorbia sudanica A.Chev.	Accepted		WCSP
Euphorbia suffruticosa Forssk.	Synonym		WCSP
Euphorbia suffruticulosa Lecoq & Lamotte	Synonym		WCSP
Euphorbia suffulta Bruyns	Accepted		WCSP
Euphorbia sulcata Lens ex Loisel.	Accepted		WCSP
Euphorbia sulcata Lem. ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia sulcata var. maroccana Molero, Rovira & Vicens	Synonym		WCSP
Euphorbia sultan-hassei Å.Strid & al.	Accepted		WCSP
Euphorbia sumati S.Carter	Accepted		WCSP
Euphorbia sumbawensis Boiss.	Accepted		WCSP
Euphorbia superans Nel ex A.G.J.Herre	Accepted		WCSP
Euphorbia supina Raf.	Synonym		WCSP
Euphorbia suppressa J.G.Marx	Accepted		WCSP
Euphorbia surinamensis Lanj.	Accepted		WCSP
Euphorbia susan-holmesiae Binojk. & Gopalan	Accepted		WCSP
Euphorbia susannae Marloth	Accepted		WCSP
Euphorbia suzannae-marnierae Rauh & Petignat	Accepted		WCSP
Euphorbia sventenii Marcet	Synonym		WCSP
Euphorbia swatensis Kitam.	Synonym		WCSP
Euphorbia sylvatica L.	Synonym		WCSP
Euphorbia sylvatica var. minor Gaudin	Synonym		WCSP
Euphorbia symmetrica A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia synadenia Baill. [Illegitimate]	Synonym		WCSP
Euphorbia synadenium Ridl. [Illegitimate]	Synonym		WCSP
Euphorbia syncalycina Bruyns	Accepted		WCSP
Euphorbia syncameronii Bruyns	Accepted		WCSP
Euphorbia syriaca Spreng.	Synonym		WCSP
Euphorbia syrmiensis Kit.	Synonym		WCSP
Euphorbia syspirensis K.Koch	Synonym		WCSP
Euphorbia systyla Edgew.	Accepted		WCSP
Euphorbia systyloides Pax	Accepted		WCSP
Euphorbia systyloides var. hebecarpa (Pax) N.E.Br.	Synonym		WCSP
Euphorbia systyloides var. lata N.E.Br.	Synonym		WCSP
Euphorbia systyloides var. pedunculata N.E.Br.	Synonym		WCSP
Euphorbia systyloides subsp. systyloides	Accepted		WCSP
Euphorbia szechuanica Pax & K.Hoffm.	Synonym		WCSP
Euphorbia szovitsii Fisch. & C.A.Mey.	Accepted		WCSP
Euphorbia taboraensis A.Hässl.	Accepted		WCSP
Euphorbia tacnensis Phil.	Accepted		WCSP
Euphorbia taifensis Fayed & Al-Zahrani	Accepted		WCSP
Euphorbia taihsiensis (Chaw & Koutnik) Oudejans	Accepted		WCSP
Euphorbia taitensis Boiss.	Synonym		WCSP
Euphorbia taitensis Pax [Illegitimate]	Synonym		WCSP
Euphorbia taitensis var. stenhymenia Boiss.	Synonym		WCSP
Euphorbia taiwaniana S.S.Ying	Synonym		WCSP
Euphorbia takouensis H.Lév. & Vaniot	Synonym		WCSP
Euphorbia talaina Radcl.-Sm.	Accepted		WCSP
Euphorbia talastavica (Prokh.) Prokh.	Accepted		WCSP
Euphorbia taluticola Wiggins	Accepted		WCSP
Euphorbia talyschensis Boiss. & Buhse	Synonym		WCSP
Euphorbia tamanduana Boiss.	Accepted		WCSP
Euphorbia tamaulipasana (Millsp.) Oudejans	Accepted		WCSP
Euphorbia tanaensis P.R.O.Bally & S.Carter	Accepted		WCSP
Euphorbia tanaicensis Guss.	Synonym		WCSP
Euphorbia tanaitica Pacz.	Synonym		WCSP
Euphorbia tangutica Prokh.	Synonym		WCSP
Euphorbia tannensis Spreng.	Accepted		WCSP
Euphorbia tannensis var. eremophila (A.Cunn. ex Hook.) D.C.Hassall	Synonym		WCSP
Euphorbia tannensis subsp. eremophila (A.Cunn. ex Hook.) D.C.Hassall	Accepted		WCSP
Euphorbia tannensis var. finlaysonii (J.M.Black) D.C.Hassall	Synonym		WCSP
Euphorbia tannensis subsp. tannensis	Accepted		WCSP
Euphorbia tanquahuete Sessé & Moc.	Accepted		WCSP
Euphorbia taourirtensis Batt. & Trab.	Synonym		WCSP
Euphorbia taquetii H.Lév. & Vaniot	Synonym		WCSP
Euphorbia tarapacana Phil.	Accepted		WCSP
Euphorbia tardieuana Leandri	Accepted		WCSP
Euphorbia tarokoensis Hayata	Synonym		WCSP
Euphorbia taruensis S.Carter	Accepted		WCSP
Euphorbia tashiroi Hayata	Synonym		WCSP
Euphorbia tatarica Jacquem. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia tatianae Fed.	Synonym		WCSP
Euphorbia taurica (Besser) Steud.	Synonym		WCSP
Euphorbia tauricola Prokh.	Accepted		WCSP
Euphorbia taurinensis All.	Accepted		WCSP
Euphorbia taurinensis var. brachyceras (Candargy) Oudejans	Synonym		WCSP
Euphorbia taurinensis var. isophylla (K.Malý) Oudejans	Synonym		WCSP
Euphorbia taurinensis f. isophylla (K.Malý) Kuzmanov	Synonym		WCSP
Euphorbia tavoyensis N.P.Balakr.	Accepted		WCSP
Euphorbia taxifolia Burm.f.	Synonym		WCSP
Euphorbia tchen-ngoi (Soják) Radcl.-Sm.	Synonym		WCSP
Euphorbia teheranica Boiss.	Accepted		WCSP
Euphorbia tehuacana (Brandegee) V.W.Steinm.	Accepted		WCSP
Euphorbia teixeirae L.C.Leach	Accepted		WCSP
Euphorbia teke Schweinf. ex Pax	Accepted		WCSP
Euphorbia telephioides Chapm.	Accepted		WCSP
Euphorbia tellieri A.Chev.	Accepted		WCSP
Euphorbia tenax Burch.	Accepted		WCSP
Euphorbia tenebrosa N.E.Br.	Accepted		WCSP
Euphorbia tenella Kunth	Synonym		WCSP
Euphorbia tenella Pax [Illegitimate]	Synonym		WCSP
Euphorbia tenera S.Watson	Synonym		WCSP
Euphorbia tenuicaulis Range [Illegitimate]	Synonym		WCSP
Euphorbia tenuicuspis Guss. ex Rchb.	Synonym		WCSP
Euphorbia tenuifolia Lam.	Synonym		WCSP
Euphorbia tenuirama Schweinf. ex A.Berger	Accepted		WCSP
Euphorbia tenuis Buch.-Ham. ex D.Don	Synonym		WCSP
Euphorbia tenuispinosa Gilli	Accepted		WCSP
Euphorbia tenuispinosa var. tenuispinosa	Accepted		WCSP
Euphorbia tenuissima M.E.Jones	Synonym		WCSP
Euphorbia teres M.Machado & Hofacker	Accepted		WCSP
Euphorbia terracina L.	Accepted		WCSP
Euphorbia terracina Lag. [Illegitimate]	Synonym		WCSP
Euphorbia terracina var. alexandrina (Delile) El-Kanemy	Synonym		WCSP
Euphorbia terracina f. angustifolia Batt.	Synonym		WCSP
Euphorbia terracina var. ecarunculata Boiss.	Synonym		WCSP
Euphorbia terracina var. mendax (Maire & Wilczek) Maire	Synonym		WCSP
Euphorbia terracina var. modesta (Boiss.) Boiss.	Synonym		WCSP
Euphorbia terracina var. obliquata (Forssk.) Fiori	Synonym		WCSP
Euphorbia terracina var. ramosissima (Loisel.) Nyman	Synonym		WCSP
Euphorbia terracina var. variicornis Maire & Sennen	Synonym		WCSP
Euphorbia tescorum S.Carter	Accepted		WCSP
Euphorbia teskensuensis Orazova	Accepted		WCSP
Euphorbia tessellata (Haw.) Steud.	Synonym		WCSP
Euphorbia tessmannii Mansf.	Accepted		WCSP
Euphorbia tetracantha Rendle	Accepted		WCSP
Euphorbia tetracantha Pax [Illegitimate]	Synonym		WCSP
Euphorbia tetracanthoides Pax	Accepted		WCSP
Euphorbia tetraceras Lange	Synonym		WCSP
Euphorbia tetragona Haw.	Accepted		WCSP
Euphorbia tetrapora Engelm.	Accepted		WCSP
Euphorbia tetrapora var. berlandieri Boiss.	Synonym		WCSP
Euphorbia tetraptera Baker	Accepted		WCSP
Euphorbia tettensis Klotzsch	Accepted		WCSP
Euphorbia tetuanensis Pau	Synonym		WCSP
Euphorbia texana Boiss.	Synonym		WCSP
Euphorbia thamnoides Boiss.	Synonym		WCSP
Euphorbia thamnoides var. hierosolymitana (Boiss.) Boiss.	Synonym		WCSP
Euphorbia thelesperma Hochst. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia theodosia Sennen [Unplaced]	Unresolved		WCSP
Euphorbia theriaca L.C.Wheeler	Accepted		WCSP
Euphorbia theriaca var. spurca M.C.Johnst.	Synonym		WCSP
Euphorbia thessala (Formánek) Degen & Dörfl.	Synonym		WCSP
Euphorbia thi Schweinf.	Synonym		WCSP
Euphorbia thi var. subinarticulata (Schweinf.) N.E.Br.	Synonym		WCSP
Euphorbia thinophila Phil.	Accepted		WCSP
Euphorbia tholicola L.C.Leach	Accepted		WCSP
Euphorbia thompsonii Holmboe	Accepted		WCSP
Euphorbia thomsoniana Boiss.	Accepted		WCSP
Euphorbia thouarsiana Baill.	Accepted		WCSP
Euphorbia thulinii S.Carter	Accepted		WCSP
Euphorbia thymifolia Forssk. [Illegitimate]	Synonym		WCSP
Euphorbia thymifolia L.	Accepted		WCSP
Euphorbia thymifolia Burm.	Unresolved		TRO
Euphorbia thymifolia f. laxifoliata Chodat & Hassl.	Synonym		WCSP
Euphorbia thymifolia var. suffrutescens Boiss.	Synonym		WCSP
Euphorbia thyrsiflora Griseb.	Synonym		WCSP
Euphorbia thyrsoidea Boiss.	Accepted		WCSP
Euphorbia tianschanica (Prokh.) Proch.	Synonym		TRO
Euphorbia tianshanica (Prokh.) Popov	Synonym		WCSP
Euphorbia tibetica Boiss.	Accepted		WCSP
Euphorbia tigridis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia tinctoria Boiss. & A.Huet	Synonym		WCSP
Euphorbia tinctoria var. schizoceras (Boiss.) Boiss.	Synonym		WCSP
Euphorbia tinianensis Hosok.	Accepted		WCSP
Euphorbia tirucalli L.	Accepted		WCSP
Euphorbia tirucalli var. rhipsaloides (Willd.) Chev.	Synonym		TRO
Euphorbia tisserantii A.Chev. & Sillans	Accepted		WCSP
Euphorbia tithymaloides L.	Accepted		WCSP
Euphorbia tithymaloides subsp. angustifolia (Poit.) V.W.Steinm.	Accepted		WCSP
Euphorbia tithymaloides subsp. bahamensis (Millsp.) ined.	Accepted		WCSP
Euphorbia tithymaloides subsp. bahamensis (Millsp.) V.W. Steinm.	Synonym		TRO
Euphorbia tithymaloides subsp. jamaicensis (Millsp. & Britton) V.W.Steinm.	Accepted		WCSP
Euphorbia tithymaloides var. myrtifolia L.	Synonym		WCSP
Euphorbia tithymaloides subsp. padifolia (L.) V.W.Steinm.	Accepted		WCSP
Euphorbia tithymaloides var. padifolia L.	Synonym		WCSP
Euphorbia tithymaloides subsp. parasitica (Boiss. ex Klotzsch) V.W.Steinm.	Accepted		WCSP
Euphorbia tithymaloides subsp. retusa (Benth.) V.W.Steinm.	Accepted		WCSP
Euphorbia tithymaloides subsp. smallii (Millsp.) V.W.Steinm.	Accepted		WCSP
Euphorbia tithymaloides subsp. tithymaloides	Accepted		WCSP
Euphorbia togakusensis Hayata	Accepted		WCSP
Euphorbia togakusensis f. acuta Hurus.	Synonym		WCSP
Euphorbia togakusensis f. intermedia (Hurus.) Oudejans	Synonym		WCSP
Euphorbia togakusensis var. ozensis Hurus.	Synonym		WCSP
Euphorbia togoensis Pax	Synonym		WCSP
Euphorbia tomentella Engelm. ex Boiss.	Accepted		WCSP
Euphorbia tomentosa Pers.	Synonym		WCSP
Euphorbia tomentulosa S.Watson	Accepted		WCSP
Euphorbia tommasiniana Bertol.	Synonym		WCSP
Euphorbia tongchuanensis C.Y.Wu & J.S.Ma	Accepted		WCSP
Euphorbia torralbasii Urb.	Accepted		WCSP
Euphorbia torrei (L.C.Leach) Bruyns	Accepted		WCSP
Euphorbia torrida DC.	Synonym		WCSP
Euphorbia torta Pax & K.Hoffm.	Accepted		WCSP
Euphorbia tortilis Rottler ex Ainslie	Accepted		WCSP
Euphorbia tortirama R.A.Dyer	Accepted		WCSP
Euphorbia tortistyla N.E.Br.	Accepted		WCSP
Euphorbia tovarensis Boiss.	Synonym		WCSP
Euphorbia toxicaria Afzel. ex Steud. [Illegitimate]	Synonym		WCSP
Euphorbia tozzii Chiov.	Accepted		WCSP
Euphorbia trachycarpa Pax	Synonym		WCSP
Euphorbia trachyphylla A.Rich.	Synonym		WCSP
Euphorbia trachysperma Engelm.	Accepted		WCSP
Euphorbia trancapatae (Croizat) J.F.Macbr.	Accepted		WCSP
Euphorbia transoxana (Prokh.) Prokh.	Accepted		WCSP
Euphorbia transsilvanica Schur	Synonym		WCSP
Euphorbia transtagana Boiss.	Accepted		WCSP
Euphorbia transvaalensis Schltr.	Accepted		WCSP
Euphorbia tranzschelii (Prokh.) Prokh.	Accepted		WCSP
Euphorbia trapaeifolia A. Chev.	Unresolved		TRO
Euphorbia trapezoidalis Viv.	Synonym		WCSP
Euphorbia trapezoidalis Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia trapifolia A.Chev.	Synonym		WCSP
Euphorbia tresmariae (Millsp.) Standl.	Accepted		WCSP
Euphorbia triacantha Ehrenb. ex Boiss.	Synonym		WCSP
Euphorbia triaculeata Forssk.	Accepted		WCSP
Euphorbia trialata (Huft) V.W.Steinm.	Accepted		WCSP
Euphorbia triangolensis Bruyns	Accepted		WCSP
Euphorbia triangularis Desf. ex A.Berger	Accepted		WCSP
Euphorbia tribuloides Lam.	Synonym		WCSP
Euphorbia trichadenia Pax	Accepted		WCSP
Euphorbia trichiocyma S.Carter	Accepted		WCSP
Euphorbia trichocardia L.B.Sm.	Accepted		WCSP
Euphorbia trichogona Bertol.	Synonym		WCSP
Euphorbia trichophylla Baker	Accepted		WCSP
Euphorbia trichotoma Kunth	Accepted		WCSP
Euphorbia trichotoma var. macilenta Millsp.	Synonym		WCSP
Euphorbia tricolor Greenm.	Accepted		WCSP
Euphorbia tricuspidata Lapeyr.	Synonym		WCSP
Euphorbia tridentata Lam.	Synonym		WCSP
Euphorbia triflora Sessé & Moc. [Illegitimate]	Synonym		WCSP
Euphorbia triflora Schott, Nyman & Kotschy	Accepted		WCSP
Euphorbia triflora subsp. kerneri (Huter ex A.Kern.) Poldini	Synonym		WCSP
Euphorbia trigona Mill.	Accepted		WCSP
Euphorbia trigona Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia trigonocarpa Fisch.	Synonym		WCSP
Euphorbia triloba Sessé & Moc.	Synonym		WCSP
Euphorbia trinervia Schumach. & Thonn.	Accepted		WCSP
Euphorbia trinervia Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia trinervis Bertol.	Synonym		WCSP
Euphorbia triodonta (Prokh.) Prokh.	Accepted		WCSP
Euphorbia tripartita S.Carter	Accepted		WCSP
Euphorbia triphylla Willd. ex Klotzsch & Garcke [Illegitimate]	Synonym		WCSP
Euphorbia triphylla (Klotzsch & Garcke) Oudejans	Accepted		WCSP
Euphorbia tristis Besser	Synonym		WCSP
Euphorbia triumfetti Bertol.	Synonym		WCSP
Euphorbia troodii Post	Synonym		WCSP
Euphorbia troyana Urb.	Synonym		WCSP
Euphorbia truncata (Pers.) Loudon	Synonym		WCSP
Euphorbia truncata N.E.Br. [Illegitimate]	Synonym		WCSP
Euphorbia tshuiensis (Prokh.) Serg. ex Krylov	Accepted		WCSP
Euphorbia tshuiensis var. tuvinica Baikov	Synonym		WCSP
Euphorbia × tsimbazazae Leandri [Unplaced]	Unresolved		WCSP
Euphorbia tsukamotoi Honda	Synonym		WCSP
Euphorbia tuberculata Jacq.	Accepted		WCSP
Euphorbia tuberculata var. macowanii (N.E.Br.) A.C.White, R.A.Dyer & B.Sloane	Synonym		WCSP
Euphorbia tuberculatoides N.E.Br.	Accepted		WCSP
Euphorbia tuberifera N.E.Br.	Accepted		WCSP
Euphorbia tuberosa L.	Accepted		WCSP
Euphorbia tubiglans Marloth ex R.A.Dyer	Accepted		WCSP
Euphorbia tuckeyana Steud. ex Webb	Accepted		WCSP
Euphorbia tuckeyana var. mezereum Chev.	Synonym		WCSP
Euphorbia tuerckheimii Urb.	Accepted		WCSP
Euphorbia tugelensis N.E.Br.	Accepted		WCSP
Euphorbia tulearensis (Rauh) Rauh	Accepted		WCSP
Euphorbia tumbaensis De Wild.	Accepted		WCSP
Euphorbia tumistyla (D.G.Burch) Radcl.-Sm.	Accepted		WCSP
Euphorbia tunetana (Murb.) Vierh. ex Buxb.	Synonym		WCSP
Euphorbia turbiniformis Chiov.	Accepted		WCSP
Euphorbia turcomanica Boiss.	Synonym		WCSP
Euphorbia turcomanica var. tigridis Boiss.	Synonym		WCSP
Euphorbia turczaninowii Kar. & Kir.	Accepted		WCSP
Euphorbia turkanensis S.Carter	Accepted		WCSP
Euphorbia turkestanica Regel	Accepted		WCSP
Euphorbia turkestanica Franch. [Illegitimate]	Synonym		WCSP
Euphorbia × turneri Druce [Unplaced]	Unresolved		WCSP
Euphorbia turolensis Sennen & Pau	Synonym		WCSP
Euphorbia turpinii Boiss.	Accepted		WCSP
Euphorbia tyraica Klokov & Artemczuk	Accepted		WCSP
Euphorbia ucrainica Andrz. ex Trautv. [Unplaced]	Unresolved		WCSP
Euphorbia ugandensis Pax & K.Hoffm.	Accepted		WCSP
Euphorbia uhehensis Pax	Synonym		WCSP
Euphorbia uhligiana Pax	Accepted		WCSP
Euphorbia uliginosa Welw. ex Boiss.	Accepted		WCSP
Euphorbia umbellata (Pax) Bruyns	Accepted		WCSP
Euphorbia umbelliformis (Urb. & Ekman) V.W.Steinm. & P.E.Berry	Accepted		WCSP
Euphorbia umbellulata Engelm. ex Boiss.	Accepted		WCSP
Euphorbia umbellulata var. major Millsp.	Synonym		WCSP
Euphorbia umbonata S.Carter	Accepted		WCSP
Euphorbia umbrosa Bertero ex Spreng.	Accepted		WCSP
Euphorbia umfoloziensis Peckover	Accepted		WCSP
Euphorbia uncinata DC.	Synonym		WCSP
Euphorbia undulata Schweigg. [Illegitimate]	Synonym		WCSP
Euphorbia undulata M.Bieb.	Accepted		WCSP
Euphorbia undulatifolia Janse	Accepted		WCSP
Euphorbia unicornis R.A.Dyer	Accepted		WCSP
Euphorbia uniflora Roxb. [Illegitimate]	Synonym		WCSP
Euphorbia × uniflora Raf.	Accepted		WCSP
Euphorbia uniflora (Haw.) G.Don [Illegitimate]	Synonym		WCSP
Euphorbia uniglandulosa S.Watson	Synonym		WCSP
Euphorbia uniglans M.G.Gilbert	Accepted		WCSP
Euphorbia unilateralis Blakelock	Synonym		WCSP
Euphorbia unispina N.E.Br.	Accepted		WCSP
Euphorbia uralensis Fisch. ex Link	Synonym		WCSP
Euphorbia urbanii (Millsp.) Oudejans	Synonym		WCSP
Euphorbia urceolophora Parodi	Accepted		WCSP
Euphorbia usambarica Pax	Accepted		WCSP
Euphorbia usambarica subsp. usambarica	Accepted		WCSP
Euphorbia ussanguensis N.E.Br.	Synonym		WCSP
Euphorbia uzmuk S.Carter & J.R.I.Wood	Accepted		WCSP
Euphorbia vaalputsiana L.C.Leach	Accepted		WCSP
Euphorbia vaccaria Baill.	Accepted		WCSP
Euphorbia vachellii Hook. & Arn.	Synonym		WCSP
Euphorbia vachellii var. pubescens (Warb.) Oudejans	Synonym		WCSP
Euphorbia vaginulata Griseb.	Accepted		WCSP
Euphorbia vahliana Guss. [Illegitimate]	Synonym		WCSP
Euphorbia vahlii Jacq.	Synonym		WCSP
Euphorbia vajravelui Binojk. & N.P.Balakr.	Accepted		WCSP
Euphorbia valdevillosocarpa Arvat & Nyár.	Accepted		WCSP
Euphorbia valentina Ortega	Synonym		WCSP
Euphorbia valerianae Pers.	Synonym		WCSP
Euphorbia valerianifolia Lam.	Accepted		WCSP
Euphorbia valerii Standl.	Synonym		WCSP
Euphorbia valida N.E.Br.	Synonym		WCSP
Euphorbia vallaris L.C.Leach	Accepted		WCSP
Euphorbia valliniana Belli	Synonym		WCSP
Euphorbia vallis-mortuae (Millsp.) J.T.Howell	Accepted		WCSP
Euphorbia vandermerwei R.A.Dyer	Accepted		WCSP
Euphorbia variabilis Ces.	Accepted		WCSP
Euphorbia variabilis subsp. valliniana (Belli) Jauzein	Accepted		WCSP
Euphorbia varians Haw.	Accepted		WCSP
Euphorbia variegata Sims	Synonym		WCSP
Euphorbia variegata B.Heyne ex Roth [Illegitimate]	Synonym		WCSP
Euphorbia variegata Deflers [Illegitimate]	Synonym		WCSP
Euphorbia vaseyi J.M.Coult.	Synonym		WCSP
Euphorbia vaticana Gand.	Synonym		WCSP
Euphorbia vauthieriana Boiss.	Accepted		WCSP
Euphorbia vedica Ter-Chatsch.	Accepted		WCSP
Euphorbia velenovskyi Bornm. [Illegitimate]	Synonym		WCSP
Euphorbia velleriflora (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia velligera Schauer	Accepted		WCSP
Euphorbia velutina Pax [Illegitimate]	Synonym		WCSP
Euphorbia velutina Greene	Synonym		WCSP
Euphorbia velutina K.Schum. [Illegitimate]	Synonym		WCSP
Euphorbia venenata Marloth	Accepted		WCSP
Euphorbia venenata Schltdl. [Illegitimate]	Synonym		WCSP
Euphorbia venenifica Tremaux ex Kotschy	Accepted		WCSP
Euphorbia veneris M.S.Khan	Accepted		WCSP
Euphorbia veneta Willd.	Synonym		WCSP
Euphorbia venteri L.C.Leach ex R.H.Archer & S.Carter	Accepted		WCSP
Euphorbia ventosica Chaix ex Timb.-Lagr.	Synonym		WCSP
Euphorbia vepretorum Drake	Synonym		WCSP
Euphorbia verapazensis Standl. & Steyerm.	Accepted		WCSP
Euphorbia verdickii De Wild.	Synonym		WCSP
Euphorbia vermiculata Raf.	Accepted		WCSP
Euphorbia vermiformis M.E.Jones	Synonym		WCSP
Euphorbia verna Salzm. ex Ball [Illegitimate]	Synonym		WCSP
Euphorbia verna Phil.	Accepted		WCSP
Euphorbia verrucosa Lam. [Illegitimate]	Synonym		WCSP
Euphorbia verrucosa L.	Accepted		WCSP
Euphorbia verrucosa var. flavescens Benth.	Synonym		WCSP
Euphorbia verrucosa f. montana (Gaudin) Oudejans	Synonym		WCSP
Euphorbia verrucosa var. montana Gaudin	Synonym		WCSP
Euphorbia verrucosa var. montenegrina Bald.	Synonym		WCSP
Euphorbia verrucosa var. velutina Boiss.	Synonym		WCSP
Euphorbia verrucosa f. velutina (Boiss.) Oudejans	Synonym		WCSP
Euphorbia verrucosa f. viridis (Erdner) Oudejans	Synonym		WCSP
Euphorbia verrucosa var. viridis Erdner	Synonym		WCSP
Euphorbia verruculosa N.E.Br.	Accepted		WCSP
Euphorbia versicolor Greene	Synonym		WCSP
Euphorbia versicolores G.Will.	Accepted		WCSP
Euphorbia verticillata Poir. [Illegitimate]	Synonym		WCSP
Euphorbia verticillata Fisch. [Illegitimate]	Synonym		WCSP
Euphorbia verticillata Vell. [Illegitimate]	Synonym		WCSP
Euphorbia verticillata Desf. [Unplaced]	Unresolved		WCSP
Euphorbia vervoorstii Subils	Accepted		WCSP
Euphorbia vestita Boiss.	Accepted		WCSP
Euphorbia vezorum Leandri	Accepted		WCSP
Euphorbia viatilis Ule	Accepted		WCSP
Euphorbia viduiflora L.C.Leach	Accepted		WCSP
Euphorbia vieillardii Baill.	Synonym		WCSP
Euphorbia viguieri Denis	Accepted		WCSP
Euphorbia villifera W.T.Wang [Illegitimate]	Synonym		WCSP
Euphorbia villifera Scheele	Accepted		WCSP
Euphorbia villifera var. crepuscula L.C.Wheeler	Synonym		WCSP
Euphorbia villifera var. nuda Engelm. ex Boiss.	Synonym		WCSP
Euphorbia villosa Friv. ex Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia villosa Waldst. & Kit. ex Willd.	Synonym		WCSP
Euphorbia villosa subsp. austriaca (A.Kern.) Soó	Synonym		WCSP
Euphorbia villosa var. longifolia (Rouy) O.Bolòs & Vigo	Synonym		WCSP
Euphorbia villosa subsp. semivillosa (Prokh.) Oudejans	Synonym		WCSP
Euphorbia villosa subsp. valdevillosocarpa (Arvat & Nyár.) R. Turner	Synonym		TRO
Euphorbia villosior Greenm.	Synonym		TRO
Euphorbia villosissima Klotzsch ex Boiss. [Invalid]	Synonym		WCSP
Euphorbia villosula Urb. [Illegitimate]	Synonym		WCSP
Euphorbia villosula Pax	Synonym		WCSP
Euphorbia viminalis L.	Synonym		WCSP
Euphorbia viminalis Mill. [Illegitimate]	Synonym		WCSP
Euphorbia viminea Hook.f.	Accepted		WCSP
Euphorbia viminea var. abingdonensis B.L.Rob. & Greenm.	Synonym		WCSP
Euphorbia viminea f. abingdonensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. albemarlensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. barringtonensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. carolensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. castellana B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. chathamensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. jacobensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia viminea f. jervensis B.L. Rob. & Greenm.	Synonym		TRO
Euphorbia vinyalsii Sennen [Illegitimate]	Synonym		WCSP
Euphorbia violacea Greenm.	Accepted		WCSP
Euphorbia viperina A.Berger	Synonym		WCSP
Euphorbia virgata Waldst. & Kit.	Synonym		WCSP
Euphorbia virgata Desf. [Illegitimate]	Synonym		WCSP
Euphorbia virgata subsp. boissierana Prokh.	Synonym		TRO
Euphorbia virgata f. esulifolia Thell.	Synonym		WCSP
Euphorbia virgata subsp. jaxartica (Prokh.) Prokh.	Synonym		WCSP
Euphorbia virgata var. kitagawae Hurus.	Synonym		WCSP
Euphorbia virgata var. montana Rchb.	Synonym		WCSP
Euphorbia virgata subsp. orientalis (Boiss.) Velen.	Synonym		WCSP
Euphorbia virgata var. orientalis Boiss.	Synonym		WCSP
Euphorbia virgata subsp. regis-jubae (J.Gay) Soldana	Synonym		WCSP
Euphorbia virgata subsp. tommasiniana (Bertol.) Nyman	Synonym		WCSP
Euphorbia virgata var. uralensis (Fisch. ex Link) Boiss.	Synonym		WCSP
Euphorbia virgata subsp. zhiguliensis Prokh.	Synonym		TRO
Euphorbia virgultosa Klokov	Synonym		WCSP
Euphorbia viridiflora Waldst. & Kit.	Synonym		WCSP
Euphorbia viridis (Klotzsch & Garcke) Boiss.	Accepted		WCSP
Euphorbia viridula Cordem. ex Radcl.-Sm.	Accepted		WCSP
Euphorbia virosa Willd.	Accepted		WCSP
Euphorbia virosa f. caespitosa H.Jacobsen	Synonym		WCSP
Euphorbia virosa f. striata H.Jacobsen	Synonym		WCSP
Euphorbia virosa subsp. virosa	Accepted		WCSP
Euphorbia viscoides Boiss.	Accepted		WCSP
Euphorbia vitellina Loscos & J.Pardo	Synonym		WCSP
Euphorbia vittata S.Carter	Accepted		WCSP
Euphorbia volgensis Krysht.	Synonym		WCSP
Euphorbia volhynica Besser ex Racib.	Synonym		WCSP
Euphorbia volkensii Pax	Synonym		WCSP
Euphorbia volkensii Werth [Illegitimate]	Synonym		WCSP
Euphorbia volkii Rech.f.	Synonym		WCSP
Euphorbia volkmanniae Dinter	Accepted		WCSP
Euphorbia vulcanorum S.Carter	Accepted		WCSP
Euphorbia × wagneri Soó	Accepted		WCSP
Euphorbia wahlbergii Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia wakefieldii N.E.Br.	Accepted		WCSP
Euphorbia waldsteinii (Soják) Radcl.-Sm.	Synonym		WCSP
Euphorbia waldsteinii subsp. jaxartica (Prokh.) Oudejans	Synonym		WCSP
Euphorbia waldsteinii subsp. orientalis (Boiss.) Oudejans	Synonym		WCSP
Euphorbia waldsteinii subsp. saratoi (Ardoino) Oudejans	Synonym		WCSP
Euphorbia wallichiana Boiss. [Illegitimate]	Synonym		WCSP
Euphorbia wallichii Hook.f.	Accepted		WCSP
Euphorbia wallichii subsp. duclouxii (H.Lév. & Vaniot) B.L.Turner	Synonym		WCSP
Euphorbia wangii Oudejans	Synonym		WCSP
Euphorbia waringiae Rauh & Gerold	Accepted		WCSP
Euphorbia watanabei Makino	Accepted		WCSP
Euphorbia waterbergensis R.A.Dyer	Accepted		WCSP
Euphorbia watsonii Millsp.	Synonym		WCSP
Euphorbia weberbaueri Mansf.	Accepted		WCSP
Euphorbia wellbyi N.E.Br.	Accepted		WCSP
Euphorbia welwitschii Boiss. & Reut.	Synonym		WCSP
Euphorbia welwitschii var. minor Daveau	Synonym		WCSP
Euphorbia welwitschii var. puberula Emb.	Synonym		WCSP
Euphorbia welwitschii var. ramosissima Daveau	Synonym		WCSP
Euphorbia wheeleri Baill.	Accepted		WCSP
Euphorbia whellanii L.C.Leach	Accepted		WCSP
Euphorbia whitei L.C.Wheeler	Accepted		WCSP
Euphorbia × whitesloaneana Manda [Unplaced]	Unresolved		WCSP
Euphorbia whitmanni Boiss.	Unresolved		TRO
Euphorbia whyteana Baker f.	Accepted		WCSP
Euphorbia wightiana Hook.f. [Illegitimate]	Synonym		WCSP
Euphorbia wightiana Boiss.	Synonym		WCSP
Euphorbia wildii L.C.Leach	Accepted		WCSP
Euphorbia williamsonii L.C.Leach	Accepted		WCSP
Euphorbia wilmaniae Marloth	Accepted		WCSP
Euphorbia wilsonii V.Vlk [Illegitimate]	Synonym		WCSP
Euphorbia wilsonii (Millsp.) Correll	Synonym		WCSP
Euphorbia × wimmeriana J.Wagner	Accepted		WCSP
Euphorbia winkleri Pax	Synonym		WCSP
Euphorbia wittmannii Boiss.	Accepted		WCSP
Euphorbia woodii N.E.Br.	Accepted		WCSP
Euphorbia wootonii Oudejans	Synonym		WCSP
Euphorbia woronowii Grossh.	Synonym		WCSP
Euphorbia wrightii Torr. & A.Gray	Accepted		WCSP
Euphorbia wulfenii Hoppe ex W.D.J.Koch	Synonym		WCSP
Euphorbia xalapensis Kunth	Accepted		WCSP
Euphorbia xalapensis var. valida Hochr.	Synonym		WCSP
Euphorbia xanthadenia Denis	Synonym		WCSP
Euphorbia xanti Engelm. ex Boiss.	Accepted		WCSP
Euphorbia xbacensis Millsp.	Accepted		WCSP
Euphorbia xeropoda Brandegee	Synonym		WCSP
Euphorbia xylacantha Pax	Accepted		WCSP
Euphorbia xylophylloides Brongn. ex Lem.	Accepted		WCSP
Euphorbia xylopoda Greenm.	Accepted		WCSP
Euphorbia yamashitae Kitam.	Synonym		WCSP
Euphorbia yanjinensis W.T.Wang	Accepted		WCSP
Euphorbia yaquiana Tidestr.	Synonym		WCSP
Euphorbia yaroslavii Poljakov	Accepted		WCSP
Euphorbia yattana (P.R.O.Bally) Bruyns	Accepted		WCSP
Euphorbia yayalesia Urb.	Synonym		WCSP
Euphorbia yemenica Boiss.	Accepted		WCSP
Euphorbia yinshanica S.Q.Zhou & G.H.Liu	Synonym		WCSP
Euphorbia yucatanensis (Millsp.) Standl.	Accepted		WCSP
Euphorbia yunnanensis Radcl.-Sm.	Synonym		WCSP
Euphorbia zahnii Heldr. ex Halácsy	Synonym		WCSP
Euphorbia zakamenae Leandri	Accepted		WCSP
Euphorbia zambesiana Benth.	Accepted		WCSP
Euphorbia zambesiana var. benguelensis (Pax) N.E.Br.	Synonym		WCSP
Euphorbia zambesiana var. villosula (Pax) N.E.Br.	Synonym		WCSP
Euphorbia × zanaharensis Ursch & Leandri [Unplaced]	Unresolved		WCSP
Euphorbia zenkeri Pax	Synonym		WCSP
Euphorbia zeylana N.E.Br.	Accepted		WCSP
Euphorbia zhiguliensis (Prokh.) Prokh.	Synonym		WCSP
Euphorbia zierioides Boiss.	Accepted		WCSP
Euphorbia zinniiflora Small	Synonym		WCSP
Euphorbia zonosperma Müll.Arg.	Accepted		WCSP
Euphorbia zornioides Boiss.	Synonym		WCSP
Euphorbia zoutpansbergensis R.A.Dyer	Accepted		WCSP
Euphorbia zygophylloides Boiss.	Synonym		WCSP
Euphorbia zygophylloides var. cymulosa Engelm. ex Boiss.	Synonym		WCSP
Euphorbia zygophylloides var. flagelliformis (Engelm.) Boiss.	Synonym		WCSP