The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

You should refer instead to the current version of The Plant List.

Results

No plant names match your search for Yucca mazeli; we will try Yucca instead.

471 plant name records match your search criteria Yucca. The results are below.

• Genus Yucca is in the family Asparagaceae. 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 Y

The results can also be downloaded as a CSV file.

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

Name	Status	Confi­dence level	Source
Yucca acaulis Kunth	Synonym		WCSP
Yucca acrotricha Schiede	Synonym		WCSP
Yucca acuminata Sweet	Synonym		WCSP
Yucca acutifolia Truff.	Synonym		WCSP
Yucca × ada Sprenger [Unplaced]	Unresolved		WCSP
Yucca × adenophora Sprenger	Synonym		WCSP
Yucca agavoides Carrière	Synonym		WCSP
Yucca × albella Sprenger	Synonym		WCSP
Yucca albospica Van Houtte	Synonym		WCSP
Yucca aletriformis Haw.	Synonym		WCSP
Yucca × aletroides Sprenger [Unplaced]	Unresolved		WCSP
Yucca aloifolia L.	Accepted		WCSP
Yucca aloifolia var. aloifolia L.	Accepted		TRO
Yucca aloifolia var. arcuata (Haw.) Trel.	Synonym		WCSP
Yucca aloifolia f. arcuata (Haw.) Voss	Synonym		WCSP
Yucca aloifolia var. conspicua (Haw.) Engelm.	Synonym		WCSP
Yucca aloifolia f. conspicua (Haw.) Engelm.	Synonym		TRO
Yucca aloifolia f. crenulata (Haw.) Voss	Synonym		WCSP
Yucca aloifolia var. draconis (L.) Engelm.	Synonym		WCSP
Yucca aloifolia f. draconis (L.) Voss	Synonym		WCSP
Yucca aloifolia var. gigantea Sprenger	Synonym		WCSP
Yucca aloifolia var. marginata Bommer	Synonym		WCSP
Yucca aloifolia var. menandi Trel.	Synonym		WCSP
Yucca aloifolia var. purpurea Baker	Synonym		WCSP
Yucca aloifolia var. roseomarginata Regel	Synonym		WCSP
Yucca aloifolia var. serratifolia Sprenger	Synonym		WCSP
Yucca aloifolia var. stenophylla Bommer	Synonym		WCSP
Yucca aloifolia var. tenuifolia (Haw.) Trel.	Synonym		WCSP
Yucca aloifolia f. tenuifolia (Haw.) Voss	Synonym		WCSP
Yucca aloifolia var. tricolor Bommer	Synonym		WCSP
Yucca aloifolia var. yucatana (Engelm.) Trel.	Synonym		WCSP
Yucca × amabilis Sprenger [Unplaced]	Unresolved		WCSP
Yucca × amoena Sprenger [Unplaced]	Unresolved		WCSP
Yucca × andreana Deleuil [Unplaced]	Unresolved		WCSP
Yucca angustifolia Pursh	Synonym		WCSP
Yucca angustifolia Carrière [Illegitimate]	Synonym		WCSP
Yucca angustifolia var. elata Engelm.	Synonym		WCSP
Yucca angustifolia var. mollis Engelm.	Synonym		WCSP
Yucca angustifolia var. radiosa Engelm.	Synonym		WCSP
Yucca angustifolia f. stricta (Sims) Voss	Synonym		WCSP
Yucca angustifolia var. stricta (Sims) Baker	Synonym		TRO
Yucca angustissima Engelm. ex Trel.	Accepted		WCSP
Yucca angustissima var. avia Reveal	Accepted		WCSP
Yucca angustissima subsp. avia (Reveal) Hochstätter	Synonym		WCSP
Yucca angustissima subsp. kanabensis (McKelvey) Hochstätter	Synonym		WCSP
Yucca angustissima var. kanabensis (McKelvey) Reveal	Accepted		WCSP
Yucca angustissima var. toftiae (S.L.Welsh) Reveal	Accepted		WCSP
Yucca angustissima subsp. toftiae (S.L.Welsh) Hochstätter	Synonym		WCSP
Yucca arborescens (Torr.) Trel.	Synonym		WCSP
Yucca arcuata Haw.	Synonym		WCSP
Yucca argospatha Verl.	Synonym		WCSP
Yucca argyraea Trel.	Synonym		TRO
Yucca argyrophylla (K. Koch) Lem.	Synonym		TRO
Yucca arizonica McKelvey	Synonym		WCSP
Yucca arkansana Trel.	Accepted		WCSP
Yucca arkansana subsp. freemanii (Shinners) Hochstätter	Synonym		WCSP
Yucca arkansana subsp. louisianensis (Trel.) Hochstätter	Synonym		WCSP
Yucca arkansana var. paniculata McKelvey	Synonym		WCSP
Yucca armata Steud.	Unresolved		TRO
Yucca × arnottiana Sprenger [Unplaced]	Unresolved		WCSP
Yucca aspera Regel	Synonym		WCSP
Yucca atkinsii Baker	Synonym		WCSP
Yucca × atropos Sprenger [Unplaced]	Unresolved		WCSP
Yucca × augusta Sprenger	Synonym		WCSP
Yucca × aurora Sprenger	Synonym		WCSP
Yucca australis Trel. [Illegitimate]	Synonym		WCSP
Yucca australis var. valida M.E.Jones	Synonym		WCSP
Yucca baccata Torr.	Accepted		WCSP
Yucca baccata var. australis Engelm.	Synonym		WCSP
Yucca baccata var. baccata	Accepted		WCSP
Yucca baccata var. brevifolia L.D.Benson & Darrow	Accepted		WCSP
Yucca baccata f. circinata (Baker) Voss	Synonym		WCSP
Yucca baccata var. circinata (Baker) Baker	Synonym		WCSP
Yucca baccata var. filifera (Chabaud) Schelle	Synonym		WCSP
Yucca baccata f. fragilifolia (Baker) Voss	Synonym		WCSP
Yucca baccata var. macrocarpa Torr.	Synonym		WCSP
Yucca baccata f. periculosa (Baker) Voss	Synonym		WCSP
Yucca baccata var. periculosa (Baker) Baker	Synonym		WCSP
Yucca baccata subsp. thornberi (McKelvey) Hochstätter	Synonym		WCSP
Yucca baccata subsp. vespertina (McKelvey) Hochstätter	Synonym		WCSP
Yucca baccata var. vespertina McKelvey	Synonym		WCSP
Yucca baileyi Wooton & Standl.	Accepted		WCSP
Yucca baileyi subsp. intermedia (McKelvey) Hochstätter	Synonym		WCSP
Yucca baileyi var. intermedia (McKelvey) Reveal	Synonym		WCSP
Yucca baileyi var. navajoa (J.M.Webber) J.M.Webber	Synonym		WCSP
Yucca barrancasecca Pasq.	Synonym		WCSP
Yucca boerhaavii Baker	Synonym		WCSP
Yucca boscii Hornem.	Synonym		WCSP
Yucca × brasiliensis Sprenger	Synonym		WCSP
Yucca brevifolia Engelm.	Accepted		WCSP
Yucca brevifolia Schott ex Trel. [Illegitimate]	Synonym		WCSP
Yucca brevifolia Schott ex Torr.	Synonym		TRO
Yucca brevifolia subsp. herbertii (J.M.Webber) Hochstätter	Synonym		WCSP
Yucca brevifolia var. herbertii (J.M.Webber) Munz	Synonym		WCSP
Yucca brevifolia f. herbertii J.M.Webber	Synonym		WCSP
Yucca brevifolia subsp. jaegeriana (McKelvey) Hochstätter	Synonym		WCSP
Yucca brevifolia var. jaegeriana McKelvey	Synonym		WCSP
Yucca californica Groenl.	Synonym		WCSP
Yucca californica Nutt. ex Baker [Invalid]	Synonym		WCSP
Yucca campestris McKelvey	Accepted		WCSP
Yucca canaliculata Hook.	Synonym		WCSP
Yucca canaliculata var. filifera (Chabaud) Fenzl	Synonym		WCSP
Yucca canaliculata var. pendula K. Koch	Synonym		TRO
Yucca capensis L.W.Lenz	Accepted		WCSP
Yucca carnerosana (Trel.) McKelvey	Accepted		WCSP
Yucca × carrierei André [Unplaced]	Unresolved		WCSP
Yucca × casertana Sprenger	Synonym		WCSP
Yucca × ceres Sprenger	Synonym		WCSP
Yucca cernua E.L.Keith	Accepted		WCSP
Yucca × chinensis Sprenger	Synonym		WCSP
Yucca circinata Baker	Synonym		WCSP
Yucca × clotho Sprenger	Synonym		WCSP
Yucca coahuilensis Matuda & I.L.Pina	Accepted		WCSP
Yucca × coelestis Sprenger	Synonym		WCSP
Yucca × colombiana Sprenger	Synonym		WCSP
Yucca × columnaris Sprenger	Synonym		WCSP
Yucca concava Baker [Illegitimate]	Synonym		WCSP
Yucca concava Haw.	Synonym		WCSP
Yucca confinis McKelvey	Synonym		WCSP
Yucca conspicua Haw.	Synonym		WCSP
Yucca conspicua Regel [Unplaced]	Unresolved		WCSP
Yucca constricta Buckley	Accepted		WCSP
Yucca contorta Carrière	Synonym		WCSP
Yucca cornuta Baker	Synonym		WCSP
Yucca crassifila Engelm.	Synonym		WCSP
Yucca crenulata Haw.	Synonym		WCSP
Yucca crinifera Lem. [Unplaced]	Unresolved		WCSP
Yucca × darwinii Sprenger	Synonym		WCSP
Yucca de-smetiana Baker	Accepted		WCSP
Yucca decipiens Trel.	Accepted		WCSP
Yucca declinata Laferr.	Accepted		WCSP
Yucca × deleuilii Trel.	Synonym		WCSP
Yucca × diana Sprenger	Synonym		WCSP
Yucca × dracaenoides André [Unplaced]	Unresolved		WCSP
Yucca draco (L.) Carrière	Synonym		WCSP
Yucca × draco Sprenger	Synonym		WCSP
Yucca draconis L.	Synonym		WCSP
Yucca draconis var. arborescens Torr.	Synonym		WCSP
Yucca × dux Sprenger	Synonym		WCSP
Yucca elata (Engelm.) Engelm.	Accepted		WCSP
Yucca elata var. elata	Accepted		WCSP
Yucca elata subsp. utahensis (McKelvey) Hochstätter	Synonym		WCSP
Yucca elata var. utahensis (McKelvey) Reveal	Synonym		WCSP
Yucca elata var. verdiensis (McKelvey) Reveal	Accepted		WCSP
Yucca eleana W.Watson	Synonym		WCSP
Yucca × elegantissima Sprenger	Synonym		WCSP
Yucca elephantipes Regel ex Trel. [Illegitimate]	Synonym		WCSP
Yucca elephantipes Regel	Accepted		TRO
Yucca elephantipes var. ghiesbreghtii Molon	Synonym		WCSP
Yucca ellacombei Baker	Synonym		WCSP
Yucca × elmensis Sprenger [Unplaced]	Unresolved		WCSP
Yucca × elwesiana Sprenger	Synonym		WCSP
Yucca endlichiana Trel.	Accepted		WCSP
Yucca engelmannii Mast.	Synonym		WCSP
Yucca × engelmannii Sprenger	Synonym		WCSP
Yucca × ensifera André [Unplaced]	Unresolved		WCSP
Yucca ensifolia Groenl.	Synonym		WCSP
Yucca × eros Sprenger	Synonym		WCSP
Yucca × europa Sprenger	Synonym		WCSP
Yucca exigua Baker	Synonym		WCSP
Yucca eylesii Baker	Synonym		WCSP
Yucca falcata auct.	Synonym		WCSP
Yucca falcata var. semicylindrica (Baker) Baker	Synonym		WCSP
Yucca faxoniana Sarg.	Accepted		WCSP
Yucca filamentosa L.	Accepted		WCSP
Yucca filamentosa var. bracteata Engelm.	Synonym		WCSP
Yucca filamentosa subsp. concava (Haw.) Hochstätter	Synonym		WCSP
Yucca filamentosa f. concava (Haw.) Voss	Synonym		WCSP
Yucca filamentosa var. concava (Haw.) Baker	Synonym		WCSP
Yucca filamentosa var. elmensis Sprenger	Synonym		WCSP
Yucca filamentosa var. flaccida (Haw.) Engelm.	Synonym		WCSP
Yucca filamentosa f. flaccida (Haw.) Voss	Synonym		WCSP
Yucca filamentosa f. glaucescens (Haw.) Voss	Synonym		WCSP
Yucca filamentosa var. glaucescens (Haw.) Baker	Synonym		WCSP
Yucca filamentosa var. grandiflora Baker	Synonym		WCSP
Yucca filamentosa var. laevigata Engelm.	Synonym		WCSP
Yucca filamentosa var. maxima Baker	Synonym		WCSP
Yucca filamentosa var. media Carrière	Synonym		WCSP
Yucca filamentosa var. mexicana S.Schauer	Synonym		WCSP
Yucca filamentosa var. nobilis Sprenger	Synonym		WCSP
Yucca filamentosa f. orchioides (Carrière) Voss	Synonym		WCSP
Yucca filamentosa var. orchioides (Carrière) Baker	Synonym		WCSP
Yucca filamentosa var. patens Carrière	Synonym		WCSP
Yucca filamentosa f. puberula (Haw.) Voss	Synonym		WCSP
Yucca filamentosa var. puberula (Haw.) Baker	Synonym		WCSP
Yucca filamentosa var. recurvifolia Alph.Wood	Synonym		WCSP
Yucca filamentosa subsp. smalliana (Fernald) Hochstätter	Synonym		WCSP
Yucca filamentosa var. smalliana (Fernald) H.E.Ahles	Synonym		WCSP
Yucca filamentosa var. variegata Carrière	Synonym		WCSP
Yucca filifera Chabaud	Accepted		WCSP
Yucca filifera Engelm. [Invalid]	Synonym		WCSP
Yucca flaccida Haw.	Accepted		WCSP
Yucca flaccida var. exigua (Baker) Trel.	Synonym		WCSP
Yucca flaccida var. glaucescens (Haw.) Trel.	Synonym		WCSP
Yucca flaccida var. grandiflora (Baker) Trel.	Synonym		WCSP
Yucca flaccida var. integra Trel.	Synonym		WCSP
Yucca flaccida var. lineata Trel.	Synonym		WCSP
Yucca flaccida var. major (Baker) Rehder	Synonym		WCSP
Yucca flaccida var. orchioides (Carrière) Trel.	Synonym		WCSP
Yucca flaccida var. smalliana (Fernald) D.B. Ward	Synonym		TRO
Yucca flexilis Carrière	Synonym		WCSP
Yucca flexilis var. boerhaavii (Baker) Trel.	Synonym		WCSP
Yucca flexilis f. ensifolia (Groenl.) Voss	Synonym		WCSP
Yucca flexilis var. ensifolia (Groenl.) Baker	Synonym		WCSP
Yucca flexilis f. ensifolia (Groenl.) Baker	Synonym		TRO
Yucca flexilis var. falcata (auct.) Baker	Synonym		WCSP
Yucca flexilis var. hildrethii Trel.	Synonym		WCSP
Yucca flexilis var. patens (André) Trel.	Synonym		WCSP
Yucca flexilis var. peacockii (Baker) Trel.	Synonym		WCSP
Yucca flexilis var. tortulata (Baker) Trel.	Synonym		WCSP
Yucca × flora Sprenger	Synonym		WCSP
Yucca × floribunda Deleuil	Synonym		WCSP
Yucca × formosa Sprenger	Synonym		WCSP
Yucca × fosteriana Sprenger [Unplaced]	Unresolved		WCSP
Yucca fragilifolia Baker	Synonym		WCSP
Yucca freemanii Shinners	Synonym		WCSP
Yucca funifera K.Koch	Synonym		WCSP
Yucca funifera Lem.	Synonym		TRO
Yucca × gaea Sprenger	Synonym		WCSP
Yucca ghiesbreghtii Baker [Invalid]	Synonym		WCSP
Yucca gigantea Lem.	Accepted		WCSP
Yucca gilbertiana (Trel.) Rydb.	Synonym		WCSP
Yucca glauca Nutt.	Accepted		WCSP
Yucca glauca subsp. albertana Hochstätter	Synonym		WCSP
Yucca glauca var. gurneyi McKelvey	Synonym		WCSP
Yucca glauca var. mollis Engelm. ex Branner & Coville	Synonym		TRO
Yucca glauca subsp. stricta (Sims) Hochstätter	Synonym		WCSP
Yucca glauca var. stricta (Sims) Sprenger	Synonym		WCSP
Yucca glauca var. stricta (Sims) Trel.	Synonym		TRO
Yucca glaucescens Haw.	Synonym		WCSP
Yucca gloriosa L.	Accepted		WCSP
Yucca gloriosa f. acuminata (Sweet) Voss	Synonym		WCSP
Yucca gloriosa var. acuminata (Sweet) Baker	Synonym		WCSP
Yucca gloriosa var. acuminata (Sweet) Carrière	Synonym		TRO
Yucca gloriosa var. elegans Carrière	Synonym		WCSP
Yucca gloriosa var. ellacombei (Baker) Baker	Synonym		WCSP
Yucca gloriosa var. flexilis (Carrière) Trel.	Synonym		WCSP
Yucca gloriosa var. glaucescens Carrière	Synonym		WCSP
Yucca gloriosa var. gloriosa	Accepted		WCSP
Yucca gloriosa var. longifolia Carrière	Synonym		WCSP
Yucca gloriosa var. maculata Carrière	Synonym		WCSP
Yucca gloriosa var. marginata Carrière	Synonym		WCSP
Yucca gloriosa var. mediostriata Planch.	Synonym		WCSP
Yucca gloriosa var. minor Carrière	Synonym		WCSP
Yucca gloriosa var. mollis Carrière	Synonym		WCSP
Yucca gloriosa var. nobilis Carrière	Synonym		WCSP
Yucca gloriosa f. obliqua (Haw.) Voss	Synonym		WCSP
Yucca gloriosa var. obliqua (Haw.) Baker	Synonym		WCSP
Yucca gloriosa f. obliqua (Haw.) Baker	Synonym		TRO
Yucca gloriosa f. pendula (Groenl.) Schelle	Synonym		WCSP
Yucca gloriosa var. planifolia Engelm.	Synonym		WCSP
Yucca gloriosa var. plicata Carrière	Synonym		WCSP
Yucca gloriosa f. pruinosa (Baker) Voss	Synonym		WCSP
Yucca gloriosa var. pruinosa (Baker) Baker	Synonym		WCSP
Yucca gloriosa var. recurvifolia (Salisb.) Engelm.	Accepted		WCSP
Yucca gloriosa var. robusta Carrière	Synonym		WCSP
Yucca gloriosa f. rufocincta (Haw.) Voss	Synonym		WCSP
Yucca gloriosa var. rufocincta (Haw.) Baker	Synonym		WCSP
Yucca gloriosa var. superba (Haw.) Baker	Synonym		WCSP
Yucca gloriosa f. tortulata (Baker) Voss	Synonym		WCSP
Yucca gloriosa var. tortulata (Baker) Baker	Synonym		WCSP
Yucca gloriosa var. tristis Carrière	Synonym		WCSP
Yucca gloriosa var. variegata (Carrière) Carrière	Synonym		WCSP
Yucca × gracillima Deleuil [Unplaced]	Unresolved		WCSP
Yucca graminifolia Zucc.	Synonym		WCSP
Yucca graminifolia Alph.Wood [Illegitimate]	Synonym		WCSP
Yucca grandiflora Gentry	Accepted		WCSP
Yucca grandis Sprenger	Synonym		WCSP
Yucca guatemalensis Baker	Synonym		WCSP
Yucca × guglielmii Sprenger	Synonym		WCSP
Yucca hanburyi Baker	Synonym		WCSP
Yucca harrimaniae Trel.	Accepted		WCSP
Yucca harrimaniae subsp. gilbertiana (Trel.) Hochstätter	Synonym		WCSP
Yucca harrimaniae var. gilbertiana Trel.	Synonym		WCSP
Yucca harrimaniae var. neomexicana (Wooton & Standl.) Reveal	Synonym		WCSP
Yucca harrimaniae subsp. neomexicana (Wooton & Standl.) Hochstätter	Synonym		WCSP
Yucca harrimaniae var. sterilis Neese & S.L.Welsh	Synonym		WCSP
Yucca harrimaniae subsp. sterilis (Neese & S.L.Welsh) Hochstätter	Synonym		WCSP
Yucca haruckeriana Crantz	Synonym		WCSP
Yucca × heliodorus Sprenger	Synonym		WCSP
Yucca × helios Sprenger	Synonym		WCSP
Yucca horrida Steud.	Unresolved		TRO
Yucca × imperator Sprenger [Unplaced]	Unresolved		WCSP
Yucca × imperialis Sprenger	Synonym		WCSP
Yucca integerrima Stokes	Synonym		WCSP
Yucca intermedia McKelvey	Accepted		WCSP
Yucca intermedia var. ramosa McKelvey	Synonym		WCSP
Yucca × ismene Sprenger	Synonym		WCSP
Yucca jaegeriana (McKelvey) L.W.Lenz	Synonym		WCSP
Yucca jaliscensis (Trel.) Trel.	Accepted		WCSP
Yucca japonica Carrière	Synonym		WCSP
Yucca × juncea Deleuil [Unplaced]	Unresolved		WCSP
Yucca kanabensis McKelvey	Synonym		WCSP
Yucca × karlsruhensis Graebn. [Unplaced]	Unresolved		WCSP
Yucca koelliana Sprenger	Synonym		WCSP
Yucca lacandonica Gómez Pompa & J.Valdés	Accepted		WCSP
Yucca × laevigata André [Unplaced]	Unresolved		WCSP
Yucca × lawrenceana Sprenger [Unplaced]	Unresolved		WCSP
Yucca lenneana Baker	Synonym		WCSP
Yucca × liliacea Sprenger [Unplaced]	Unresolved		WCSP
Yucca linearifolia Clary	Accepted		WCSP
Yucca linearis (Trel.) D.J.Ferguson	Synonym		WCSP
Yucca longifolia Carrière [Illegitimate]	Synonym		WCSP
Yucca longifolia Karw. ex Schult. & Schult.f.	Synonym		WCSP
Yucca longifolia Buckley [Illegitimate]	Synonym		WCSP
Yucca louisianensis Trel.	Synonym		WCSP
Yucca louisianensis var. paniculata (McKelvey) Shinners	Synonym		WCSP
Yucca × luna Sprenger	Synonym		WCSP
Yucca lutescens Carrière	Synonym		WCSP
Yucca × luxurians Sprenger	Synonym		WCSP
Yucca × macrocarpa Engelm.	Synonym		WCSP
Yucca macrocarpa (Torr.) Coville [Illegitimate]	Synonym		WCSP
Yucca madrensis Gentry	Accepted		WCSP
Yucca × magnifica Sprenger	Synonym		WCSP
Yucca × mariae Sprenger	Synonym		WCSP
Yucca mazelii W.Watson	Synonym		WCSP
Yucca medio-picta Carrière	Unresolved		TRO
Yucca × messiliensis André [Unplaced]	Unresolved		WCSP
Yucca mexicana Sessé & Moc. [Unplaced]	Unresolved		WCSP
Yucca × minerva Sprenger	Synonym		WCSP
Yucca mixtecana García-Mend.	Accepted		WCSP
Yucca mohavensis Sarg.	Synonym		WCSP
Yucca mollis Cockerell [Unplaced]	Unresolved		WCSP
Yucca mooreana Baker	Synonym		WCSP
Yucca × moraea Sprenger	Synonym		WCSP
Yucca nana Hochstätter	Synonym		WCSP
Yucca navajoa J.M.Webber	Synonym		WCSP
Yucca necopina Shinners	Accepted		WCSP
Yucca neomexicana Wooton & Standl.	Accepted		WCSP
Yucca newberryi McKelvey	Synonym		WCSP
Yucca × nicotrana Sprenger	Synonym		WCSP
Yucca nitida C.Wright ex W.Watson	Synonym		WCSP
Yucca obliqua Haw.	Synonym		WCSP
Yucca × oceanus Sprenger	Synonym		WCSP
Yucca orchioides Carrière	Synonym		WCSP
Yucca orchioides var. major Baker	Synonym		WCSP
Yucca ortigiesiana Roezl	Synonym		WCSP
Yucca pallida McKelvey	Accepted		WCSP
Yucca pallida var. edentata (Trel.) Cory	Synonym		WCSP
Yucca × paradoxa Sprenger [Unplaced]	Unresolved		WCSP
Yucca parmentieri Carrière [Illegitimate]	Synonym		WCSP
Yucca parmentieri Roezl	Synonym		WCSP
Yucca parviflora Torr.	Synonym		WCSP
Yucca × passiflora Sprenger	Synonym		WCSP
Yucca patens André	Synonym		WCSP
Yucca peacockii Baker	Synonym		WCSP
Yucca pendula Groenl.	Synonym		WCSP
Yucca pendula var. aurea Carrière	Synonym		WCSP
Yucca pendula var. variegata Carrière	Synonym		WCSP
Yucca peninsularis McKelvey	Synonym		WCSP
Yucca × peregrina Sprenger [Unplaced]	Unresolved		WCSP
Yucca periculosa Baker	Accepted		WCSP
Yucca picta Hovey	Unresolved		TRO
Yucca × pilosa Deleuil [Unplaced]	Unresolved		WCSP
Yucca pitcairnifolia Karw.	Synonym		TRO
Yucca plicata (Carrière) K.Koch	Synonym		WCSP
Yucca plicatilis K.Koch	Synonym		WCSP
Yucca polyphylla Baker	Synonym		WCSP
Yucca potosina Rzed.	Accepted		WCSP
Yucca × praecox Sprenger	Synonym		WCSP
Yucca × princeps Sprenger	Synonym		WCSP
Yucca pringlei Greenm.	Synonym		TRO
Yucca × procera Deleuil [Unplaced]	Unresolved		WCSP
Yucca pruinosa Baker	Synonym		WCSP
Yucca puberula Haw.	Synonym		WCSP
Yucca × puberula Torr. [Illegitimate]	Synonym		WCSP
Yucca × purpurascens Sprenger	Synonym		WCSP
Yucca purpurea Baker	Synonym		WCSP
Yucca quadricolor Baker	Synonym		WCSP
Yucca queretaroensis Piña Luján	Accepted		WCSP
Yucca radiosa (Engelm.) Trel.	Synonym		WCSP
Yucca recurva Haw.	Synonym		WCSP
Yucca recurvata Carrière	Synonym		WCSP
Yucca recurvifolia Salisb.	Synonym		WCSP
Yucca recurvifolia var. elegans (Carrière) Trel.	Synonym		WCSP
Yucca recurvifolia var. marginata (Carrière) Trel.	Synonym		WCSP
Yucca recurvifolia var. rufocincta (Haw.) Baker	Synonym		WCSP
Yucca recurvifolia var. tristis (Carrière) Trel.	Synonym		WCSP
Yucca recurvifolia var. variegata (Carrière) Trel.	Synonym		WCSP
Yucca × regalis Sprenger	Synonym		WCSP
Yucca reverchonii Trel.	Accepted		WCSP
Yucca revoluta Carrière	Synonym		WCSP
Yucca × rex Sprenger	Synonym		WCSP
Yucca rigida (Engelm.) Trel.	Accepted		WCSP
Yucca × rigida André [Illegitimate]	Synonym		WCSP
Yucca rigida var. inermis Trel.	Synonym		WCSP
Yucca roezlii Baker [Invalid]	Synonym		WCSP
Yucca rostrata Engelm. ex Trel.	Accepted		WCSP
Yucca rostrata var. integra Trel.	Synonym		WCSP
Yucca rostrata var. linearis Trel.	Synonym		WCSP
Yucca rubescens Pasq.	Unresolved		TRO
Yucca rufocincta Haw.	Synonym		WCSP
Yucca rupicola Scheele	Accepted		WCSP
Yucca rupicola var. edentata Trel.	Synonym		WCSP
Yucca rupicola var. rigida Engelm.	Synonym		WCSP
Yucca rupicola var. tortifolia Engelm.	Synonym		TRO
Yucca × saturnus Sprenger	Synonym		WCSP
Yucca scabrifolia Baker	Synonym		WCSP
Yucca schidigera Roezl ex Ortgies	Accepted		WCSP
Yucca × schottii Engelm.	Accepted		WCSP
Yucca × schottii var. jaliscensis Trel.	Synonym		WCSP
Yucca × schottii var. valida (Brandegee) M.E.Jones	Synonym		WCSP
Yucca semicylindrica Baker	Synonym		WCSP
Yucca serratifolia Karw. ex Schult. & Schult.f.	Synonym		WCSP
Yucca serrulata Haw.	Synonym		WCSP
Yucca × sieheana Sprenger	Synonym		WCSP
Yucca smalliana Fernald	Synonym		WCSP
Yucca × smaragdina Sprenger [Unplaced]	Unresolved		WCSP
Yucca × sokrates Sprenger	Synonym		WCSP
Yucca spinosa Kunth	Synonym		WCSP
Yucca × sprengeri W.Muell. [Unplaced]	Unresolved		WCSP
Yucca standleyi McKelvey	Synonym		WCSP
Yucca stenophylla Carrière	Synonym		WCSP
Yucca stenophylla Steud.	Synonym		WCSP
Yucca sterilis (Neese & S.L.Welsh) S.L.Welsh & L.C.Higgins	Unresolved		WCSP (in review)
Yucca striata auct.	Synonym		WCSP
Yucca × striatula André [Unplaced]	Unresolved		WCSP
Yucca stricta Sims	Synonym		WCSP
Yucca × sulcata André	Synonym		WCSP
Yucca superba Roxb. [Illegitimate]	Synonym		WCSP
Yucca superba Haw. [Illegitimate]	Synonym		WCSP
Yucca tenuifolia Haw.	Synonym		WCSP
Yucca tenuistyla Trel.	Accepted		WCSP
Yucca thompsoniana Trel.	Accepted		WCSP
Yucca thornberi McKelvey	Synonym		WCSP
Yucca × titanus Sprenger	Synonym		WCSP
Yucca toftiae S.L.Welsh	Synonym		WCSP
Yucca toneliana K.Koch	Synonym		WCSP
Yucca torreyi Shafer [Illegitimate]	Synonym		WCSP
Yucca torreyi f. parviflora McKelvey	Synonym		WCSP
Yucca tortifolia Lindh. ex Torr.	Synonym		WCSP
Yucca tortilis Carrière	Synonym		WCSP
Yucca tortulata Baker	Synonym		WCSP
Yucca treculeana Carrière	Accepted		WCSP
Yucca treculeana var. canaliculata Trel.	Synonym		WCSP
Yucca treculeana var. glauca Sprenger	Synonym		WCSP
Yucca treculeana var. succulenta McKelvey	Synonym		WCSP
Yucca treleasei J.F.Macbr. [Illegitimate]	Synonym		WCSP
Yucca × treleasei Sprenger [Unplaced]	Unresolved		WCSP
Yucca treleasei Sprenger	Synonym		TRO
Yucca tricolor Baker	Synonym		WCSP
Yucca undulata K.Koch	Synonym		WCSP
Yucca utahensis McKelvey	Accepted		WCSP
Yucca valida Brandegee	Accepted		WCSP
Yucca vandervinniana K. Koch	Unresolved		TRO
Yucca verdiensis McKelvey	Synonym		WCSP
Yucca versicolor Carrière	Unresolved		TRO
Yucca vespertina (McKelvey) S.L.Welsh	Synonym		WCSP
Yucca × virescens Sprenger [Unplaced]	Unresolved		WCSP
Yucca × virgilius Sprenger	Synonym		WCSP
Yucca × viridiflora Sprenger	Synonym		WCSP
Yucca × vomerensis Sprenger	Synonym		WCSP
Yucca whipplei Torr.	Synonym		WCSP
Yucca whipplei var. caespitosa M.E.Jones	Synonym		WCSP
Yucca whipplei subsp. caespitosa (M.E.Jones) A.L.Haines	Synonym		WCSP
Yucca whipplei subsp. eremica Epling & A.L.Haines	Synonym		WCSP
Yucca whipplei f. graminifolia (Trel.) Voss	Synonym		WCSP
Yucca whipplei var. graminifolia Baker	Synonym		TRO
Yucca whipplei var. intermedia (A.L.Haines) J.M.Webber	Synonym		WCSP
Yucca whipplei subsp. intermedia A.L.Haines	Synonym		WCSP
Yucca whipplei subsp. newberryi (McKelvey) Hochstätter	Synonym		WCSP
Yucca whipplei var. parishii M.E.Jones	Synonym		WCSP
Yucca whipplei subsp. parishii (M.E.Jones) A.L.Haines	Synonym		WCSP
Yucca whipplei subsp. percursa A.L.Haines	Synonym		WCSP
Yucca whipplei var. percursa (A.L.Haines) J.M.Webber	Synonym		WCSP
Yucca whipplei subsp. rigata Afferni & Drovandi	Synonym		WCSP
Yucca whipplei subsp. whipplei	Unresolved		TRO
Yucca williamsiana W.Muell.	Synonym		WCSP
Yucca × willmottiana Sprenger	Synonym		WCSP
Yucca × wittmackiana Sprenger	Synonym		WCSP
Yucca yucatana Engelm.	Synonym		WCSP