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⚠ Version 1 of The Plant List has been superseded.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 Viola delphiniifolia; we will try Viola instead.

2433 plant name records match your search criteria Viola. The results are below.

• Genus Viola is in the family Violaceae. 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
Viola aberrans Greene	Unresolved		WCSP (in review)
Viola abortiva Jord.	Unresolved		WCSP (in review)
Viola abulensis Fern.Casado & Nava	Unresolved		WCSP (in review)
Viola × abundans House	Unresolved		WCSP (in review)
Viola abyssinica Steud. ex Oliv.	Accepted		TRO
Viola abyssinica var. eminii Engl.	Synonym		TRO
Viola abyssinica x eminii	Unresolved		TRO
Viola acanthophylla Leybold ex Reiche	Accepted		TRO
Viola acaulis Schult.	Unresolved		WCSP (in review)
Viola accrescens Klokov	Accepted		WCSP (in review)
Viola achlydophylla Greene	Synonym		TRO
Viola achyrophora Greene	Unresolved		WCSP (in review)
Viola acrocerauniensis Erben	Unresolved		WCSP (in review)
Viola acuminata Ledeb.	Accepted		TRO
Viola acuminata var. acuminata	Accepted		TRO
Viola acuminata subsp. austroussuriensis W. Becker	Synonym		TRO
Viola acuminata var. austroussuriensis (W. Becker) Kitag.	Synonym		TRO
Viola acuminata var. brevistipulata (W. Becker) Kitag.	Synonym		TRO
Viola acuminata var. intermedia Nakai	Synonym		TRO
Viola acuta Bigelow	Synonym		TRO
Viola acutifolia (Kar. & Kir.) W. Becker	Accepted		TRO
Viola acutilabella Hayata	Synonym		TRO
Viola adenophylla Killip ex Luteyn	Unresolved		TRO
Viola adenothrix Hayata	Synonym		TRO
Viola adenothrix var. tsugitakaensis (Masam.) J.C. Wang & T.C. Huang	Synonym		TRO
Viola adriatica Freyn	Unresolved		WCSP (in review)
Viola × adulterina Schur	Unresolved		WCSP (in review)
Viola × adulterina Godr.	Unresolved		WCSP (in review)
Viola adunca Sm.	Accepted		TRO
Viola adunca var. bellidifolia (Greene) H.D. Harr.	Synonym		TRO
Viola adunca var. cascadensis (M.S. Baker) C.L. Hitchc.	Accepted		TRO
Viola adunca f. glabra (Brainerd) G.N. Jones	Synonym		TRO
Viola adunca var. glabra Brainerd	Synonym		TRO
Viola adunca var. longipes (Nutt.) Rydb.	Synonym		TRO
Viola adunca f. masonii (Farw.) B. Boivin	Accepted		TRO
Viola adunca var. minor (Hook.) Fernald	Accepted		TRO
Viola adunca subsp. oxyceras (S. Watson) Piper	Synonym		TRO
Viola adunca var. oxyceras (S. Watson) Jeps.	Synonym		TRO
Viola adunca var. uncinulata (Greene) C.L. Hitchc.	Accepted		TRO
Viola adunca subsp. uncinulata (Greene) Applegate	Synonym		TRO
Viola aduncoides Á.Löve & D.Löve	Unresolved		WCSP (in review)
Viola aetnensis Tornab.	Unresolved		WCSP (in review)
Viola aetolica Boiss. & Heldr.	Unresolved		WCSP (in review)
Viola affinis Leconte	Synonym		TRO
Viola agrestis Jord.	Unresolved		WCSP (in review)
Viola aguilaris Sennen & Gonzalo	Unresolved		WCSP (in review)
Viola aizoon Reiche	Accepted		WCSP (in review)
Viola × ajtayana J.Wagner	Unresolved		WCSP (in review)
Viola alabamensis Pollard	Unresolved		WCSP (in review)
Viola alachuana Murrill	Unresolved		WCSP (in review)
Viola alaica Vved.	Accepted		WCSP (in review)
Viola alajensis W.Becker	Unresolved		WCSP (in review)
Viola alata Burgersd.	Synonym		TRO
Viola alata subsp. verecunda (A. Gray) W. Becker	Synonym		TRO
Viola alba Besser	Unresolved		WCSP (in review)
Viola alba subsp. dehnhardtii (Ten.) W.Becker	Unresolved		WCSP (in review)
Viola alba subsp. scotophylla Nyman	Synonym		TRO
Viola albanica Halácsy	Unresolved		WCSP (in review)
Viola albertina Greene	Unresolved		WCSP (in review)
Viola albida Palib.	Accepted		TRO
Viola albida var. albida	Accepted		TRO
Viola albida var. chaerophylloides (Regel) F. Maek.	Synonym		TRO
Viola albida var. sieboldiana (Maxim.) F. Maek.	Synonym		TRO
Viola albida f. sieboldiana (Maxim.) F. Maek.	Synonym		TRO
Viola albida var. takahashii (Nakai) Nakai	Accepted		TRO
Viola albida f. takahashii (Nakai) Kitag.	Synonym		TRO
Viola × albiensis Sudre	Unresolved		WCSP (in review)
Viola albiflora Link	Unresolved		WCSP (in review)
Viola × albimaritima Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola × albovii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola alexandrowiana (W.Becker) Juz.	Unresolved		WCSP (in review)
Viola alexejana Kamelin & Junussov	Unresolved		WCSP (in review)
Viola algida Humb. & Bonpl. ex Schult.	Unresolved		WCSP (in review)
Viola aliceae M.S.Baker	Unresolved		WCSP (in review)
Viola alisoviana Kiss	Synonym		TRO
Viola alisoviana f. candida (Kitag.) Taken.	Synonym		TRO
Viola alisoviana f. intermedia (Kitag.) Taken.	Synonym		TRO
Viola allardii Greene	Unresolved		WCSP (in review)
Viola allchariensis Beck	Unresolved		WCSP (in review)
Viola alleghanensis Schult.	Unresolved		WCSP (in review)
Viola allegheniensis L.K.Henry	Unresolved		WCSP (in review)
Viola alliariifolia Nakai	Unresolved		WCSP (in review)
Viola allionii Hegetschw.	Unresolved		WCSP (in review)
Viola allochroa Botsch.	Accepted		WCSP (in review)
Viola × alpigena Chatenier	Unresolved		WCSP (in review)
Viola alpina Jacq.	Unresolved		WCSP (in review)
Viola alpina All.	Unresolved		WCSP (in review)
Viola alpina Salisb.	Unresolved		WCSP (in review)
Viola alpina Ruiz & Pav. ex Ging.	Unresolved		WCSP (in review)
Viola alpina Huds.	Unresolved		WCSP (in review)
Viola alsophila Greene	Unresolved		WCSP (in review)
Viola altaica Ker Gawl.	Accepted		WCSP (in review)
Viola amamiana Hatus.	Unresolved		WCSP (in review)
Viola amani Post	Unresolved		WCSP (in review)
Viola ambigua Waldst. & Kit.	Unresolved		WCSP (in review)
Viola ambigua Barceló	Unresolved		WCSP (in review)
Viola ammotropha E.H.L.Krause	Unresolved		WCSP (in review)
Viola amoena T.F.Forst.	Unresolved		WCSP (in review)
Viola amoena Leconte	Unresolved		WCSP (in review)
Viola amorphophylla Pollard	Unresolved		WCSP (in review)
Viola amurica W. Becker	Synonym		TRO
Viola anagae Gilli	Unresolved		WCSP (in review)
Viola andersonii Greene	Unresolved		WCSP (in review)
Viola andina W.Becker	Unresolved		WCSP (in review)
Viola andrasovszkyi Jáv.	Unresolved		WCSP (in review)
Viola angellae Pollard	Unresolved		WCSP (in review)
Viola angkae Craib	Unresolved		WCSP (in review)
Viola anglica Drabble	Unresolved		WCSP (in review)
Viola angustifolia Phil.	Accepted		TRO
Viola angustistipulata C.C. Chang	Synonym		TRO
Viola anisopetala Greene	Synonym		TRO
Viola annamensis Baker f.	Unresolved		WCSP (in review)
Viola anodonta Greene	Unresolved		WCSP (in review)
Viola anomala Kit. ex Colla	Unresolved		WCSP (in review)
Viola apennina N.Terracc.	Unresolved		WCSP (in review)
Viola apetala F.W.Schmidt	Unresolved		WCSP (in review)
Viola apetala Gilib.	Unresolved		WCSP (in review)
Viola apetala Roxb.	Unresolved		WCSP (in review)
Viola apoensis Elmer	Unresolved		WCSP (in review)
Viola appalachiensis L.K. Henry	Synonym		TRO
Viola appendiculata Steud.	Unresolved		WCSP (in review)
Viola araucaniae Becker	Accepted		TRO
Viola arborea L.	Synonym		WCSP (in review)
Viola arborescens L.	Accepted		WCSP (in review)
Viola arbuscula Phil.	Unresolved		WCSP (in review)
Viola arcuata Blume	Accepted		TRO
Viola arcuata f. radicans (Makino) Nakai	Synonym		TRO
Viola arcuata var. verecunda (A. Gray) Nakai	Synonym		TRO
Viola arenaria DC.	Synonym		WCSP (in review)
Viola arenicola Chabert	Unresolved		WCSP (in review)
Viola argenteria Moraldo & Forneris	Unresolved		WCSP (in review)
Viola argentina W.Becker	Unresolved		WCSP (in review)
Viola argentinensis Speg.	Unresolved		WCSP (in review)
Viola arguta Kunth	Synonym		TRO
Viola arguta Willd. ex Roem. & Schult.	Accepted		TRO
Viola arguta var. glaberrima W. Becker	Synonym		TRO
Viola arguta subsp. meridionalis W. Becker	Synonym		TRO
Viola arguta var. meridionalis (W. Becker) L.B. Sm. & A. Fernández	Synonym		TRO
Viola arguta subsp. typica W. Becker	Synonym		TRO
Viola arguta x dombeyana	Accepted		TRO
Viola arisanensis W. Becker	Synonym		TRO
Viola arizonica Greene	Synonym		TRO
Viola armena Boiss. & A.Huet	Unresolved		WCSP (in review)
Viola × arophila Wiesb.	Unresolved		WCSP (in review)
Viola arsenica Beck	Unresolved		WCSP (in review)
Viola arvatica Jord.	Unresolved		WCSP (in review)
Viola arvensioides Strobl	Unresolved		WCSP (in review)
Viola arvensis Murray	Accepted		WCSP (in review)
Viola arvensis subsp. arvensis	Accepted		TRO
Viola arvensis subsp. kitaibeliana (Roem. & Schult.) Mateo & Figuerola	Synonym		TRO
Viola asarifolia Pursh	Synonym		TRO
Viola aspera Ging.	Unresolved		WCSP (in review)
Viola asterias Hook. & Arn.	Synonym		TRO
Viola athois W.Becker	Unresolved		WCSP (in review)
Viola atlantica Britton	Unresolved		WCSP (in review)
Viola atlantica Pomel	Unresolved		WCSP (in review)
Viola atrichocarpa Borbás	Unresolved		WCSP (in review)
Viola atriplicifolia Greene	Synonym		TRO
Viola atriplicifolia var. thorii (A. Nelson) A. Nelson	Synonym		TRO
Viola atropurpurea Leyb.	Accepted		TRO
Viola atroviolacea W. Becker	Synonym		TRO
Viola attenuata Steud.	Unresolved		WCSP (in review)
Viola attenuata Sweet	Unresolved		WCSP (in review)
Viola aubletii G.Mey.	Unresolved		WCSP (in review)
Viola aurantiaca Leybold	Accepted		TRO
Viola aurasiaca Pomel	Unresolved		WCSP (in review)
Viola aurata Phil.	Accepted		TRO
Viola aurea Kellogg	Accepted		TRO
Viola aurea subsp. mohavensis M.S. Baker & J.C. Clausen	Synonym		TRO
Viola aurea var. venosa (S. Watson) S. Watson	Synonym		TRO
Viola auricolor Skottsb.	Unresolved		WCSP (in review)
Viola auricula Leyb.	Accepted		TRO
Viola auriculata Leyb.	Unresolved		WCSP (in review)
Viola auritella W.Becker	Unresolved		WCSP (in review)
Viola × ausonensis Sennen	Unresolved		WCSP (in review)
Viola austinae Greene	Unresolved		WCSP (in review)
Viola austriaca A.Kern. & Jos.Kern.	Unresolved		WCSP (in review)
Viola austrosinensis Y.S. Chen & Q. E. Yang	Unresolved		TRO
Viola austroussuriensis (W. Becker) Kom.	Synonym		TRO
Viola avatschensis W.Becker & Hultén	Unresolved		WCSP (in review)
Viola averyi Kellogg	Unresolved		WCSP (in review)
Viola awagatakensis T.Yamaz., I.Ito & Ageishi	Unresolved		WCSP (in review)
Viola × babiogorensis Zapal.	Unresolved		WCSP (in review)
Viola babunensis Erben	Unresolved		WCSP (in review)
Viola × bachtschisaraensis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola × badensis Wiesb.	Unresolved		WCSP (in review)
Viola baicalensis W.Becker	Unresolved		WCSP (in review)
Viola bakeri Greene	Synonym		TRO
Viola balansae Gagnep.	Unresolved		WCSP (in review)
Viola balbisii Re	Unresolved		WCSP (in review)
Viola balcanica Delip.	Unresolved		WCSP (in review)
Viola × balearica Rosselló, Mayol & Mus	Unresolved		WCSP (in review)
Viola × balmesii Sennen	Unresolved		WCSP (in review)
Viola balsaminoides Gardner	Unresolved		WCSP (in review)
Viola baltica W.Becker	Unresolved		WCSP (in review)
Viola bambusetorum Hand.-Mazz.	Synonym		TRO
Viola banatica Kit. ex Schult.	Unresolved		WCSP (in review)
Viola banatica Simonk.	Unresolved		WCSP (in review)
Viola bangiana W. Becker	Synonym		TRO
Viola bangii Rusby	Accepted		TRO
Viola banksii K.R.Thiele & Prober	Unresolved		WCSP (in review)
Viola barbata Muhl. ex Schult.	Unresolved		WCSP (in review)
Viola barceloi L.Chodat	Unresolved		WCSP (in review)
Viola barceloi Nyman	Unresolved		WCSP (in review)
Viola barroetana W. Schaffn.	Accepted		TRO
Viola × basilensis W.Becker	Unresolved		WCSP (in review)
Viola × batava Kloos	Unresolved		WCSP (in review)
Viola battandieri W.Becker	Unresolved		WCSP (in review)
Viola baumgarteniana Schur	Unresolved		WCSP (in review)
Viola bavarica Schrank	Unresolved		WCSP (in review)
Viola baxteri House	Unresolved		WCSP (in review)
Viola beamanii Calderón	Unresolved		WCSP (in review)
Viola beckiana Fiala ex Beck	Unresolved		WCSP (in review)
Viola beckwithii Torr. & A. Gray	Accepted		TRO
Viola beckwithii var. cachensis C.P. Sm.	Synonym		TRO
Viola beckwithii var. trinervata Howell	Synonym		TRO
Viola beckwithii torr & a gray x utahensis M.S. Baker & J.C. Clausen	Unresolved		TRO
Viola beebyi Druce	Unresolved		WCSP (in review)
Viola begoniifolia Benth.	Synonym		TRO
Viola behboudiana Rech.f. & Esfand.	Unresolved		WCSP (in review)
Viola bella Gren.	Unresolved		WCSP (in review)
Viola bellidifolia Greene	Synonym		TRO
Viola bellidifolia subsp. valida M.S. Baker	Synonym		TRO
Viola belophylla H. Boissieu	Accepted		TRO
Viola beraudii Boreau	Unresolved		WCSP (in review)
Viola × berggrenii W.Becker	Unresolved		WCSP (in review)
Viola × bernardii (Greene) 91+(pro sp.)+	Accepted		TRO
Viola bernoulliana W.Becker	Unresolved		WCSP (in review)
Viola berteroniana Steud.	Unresolved		WCSP (in review)
Viola bertolonii Salis	Unresolved		WCSP (in review)
Viola bertolonii Pio	Unresolved		WCSP (in review)
Viola bertotii Souché ex Corb.	Unresolved		WCSP (in review)
Viola × bessarabica Zapal.	Unresolved		WCSP (in review)
Viola besseri Rupr.	Unresolved		WCSP (in review)
Viola × bethkeana Prahl	Unresolved		WCSP (in review)
Viola bethkeana Borbás	Unresolved		WCSP (in review)
Viola × bethkei K.Richt.	Unresolved		WCSP (in review)
Viola betonicifolia Sm.	Accepted		TRO
Viola betonicifolia subsp. dielsiana W. Becker	Synonym		TRO
Viola betonicifolia subsp. jaunsariensis (W. Becker) H. Hara	Synonym		TRO
Viola betonicifolia subsp. nepalensis (Ging.) W. Becker	Synonym		TRO
Viola betonicifolia subsp. novaguineensis D.M.Moore	Synonym		TRO
Viola betonicifolia var. oblongosagittata (Nakai) F. Maek. & T. Hashim.	Synonym		TRO
Viola betonicifolia f. pubescens H. Hara	Synonym		TRO
Viola bezdelevae Vorosch.	Unresolved		WCSP (in review)
Viola × bezdelevae Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola bhutanica H. Hara	Synonym		TRO
Viola biacuta W.Becker	Unresolved		WCSP (in review)
Viola bicolor Pursh	Accepted		TRO
Viola bielziana Schur	Unresolved		WCSP (in review)
Viola biflora L.	Accepted		WCSP (in review)
Viola biflora var. acuminata Maxim.	Synonym		TRO
Viola biflora var. acutifolia H. Boissieu	Synonym		TRO
Viola biflora var. acutifolia Kar. & Kir.	Synonym		TRO
Viola biflora var. biflora	Accepted		TRO
Viola biflora subsp. carlottae Calder & Roy L.Taylor	Accepted		WCSP (in review)
Viola biflora var. carlottae (Calder & Roy L.Taylor) B.Boivin	Synonym		WCSP (in review)
Viola biflora var. ciliicalyx H. Boissieu	Synonym		TRO
Viola biflora var. hirsuta W. Becker	Synonym		TRO
Viola biflora var. nudicaulis W. Becker	Synonym		TRO
Viola biflora var. platyphylla Franch.	Synonym		TRO
Viola biflora var. rockiana (W. Becker) Y.S. Chen	Accepted		TRO
Viola biflora var. sitchensis (Bong. ex Ledeb.) Regel	Accepted		TRO
Viola biflora var. valdepilosa Hand.-Mazz.	Synonym		TRO
Viola bilczensis Blocki	Unresolved		WCSP (in review)
Viola billotiana F.W.Schultz ex Nyman	Unresolved		WCSP (in review)
Viola billotii F.W.Schultz	Unresolved		WCSP (in review)
Viola binayensis Okamoto & K.Ueda	Unresolved		WCSP (in review)
Viola binchuanensis S.H. Huang	Synonym		TRO
Viola × bissellii House	Unresolved		WCSP (in review)
Viola bissetii Maxim.	Unresolved		WCSP (in review)
Viola biternata Greene	Synonym		TRO
Viola biturigensis Boreau ex Déségl.	Unresolved		WCSP (in review)
Viola blanda Salisb.	Unresolved		WCSP (in review)
Viola blanda Willd.	Unresolved		WCSP (in review)
Viola blanda Schott	Unresolved		WCSP (in review)
Viola blanda var. macloskeyi (F.E. Lloyd) Jeps.	Synonym		TRO
Viola blanda subsp. macloskeyi (F.E. Lloyd) A.E. Murray	Synonym		TRO
Viola blanda var. renifolia (A. Gray) A. Gray	Unresolved		TRO
Viola blandiformis Nakai	Unresolved		WCSP (in review)
Viola blumii Korth.	Unresolved		WCSP (in review)
Viola bocquetiana Yild.	Unresolved		WCSP (in review)
Viola × bohemica Beck	Unresolved		WCSP (in review)
Viola boissieuana Makino	Unresolved		WCSP (in review)
Viola boissieui H. Lév. & Maire	Synonym		TRO
Viola bolivari Pau	Unresolved		WCSP (in review)
Viola boliviana W. Becker	Synonym		TRO
Viola boliviana Britton	Accepted		TRO
Viola boninensis Nakai	Unresolved		WCSP (in review)
Viola bonnevillensis Cottam	Synonym		TRO
Viola borbasii Gáyer	Unresolved		WCSP (in review)
Viola borchersii Phil.	Unresolved		WCSP (in review)
Viola borealis Weinm.	Unresolved		WCSP (in review)
Viola bornmuelleri Erben	Unresolved		WCSP (in review)
Viola × borsodiensis Budai & Gáyer	Unresolved		WCSP (in review)
Viola borussica W.Becker	Unresolved		WCSP (in review)
Viola bosniaca Formánek	Unresolved		WCSP (in review)
Viola bourgaei Rouy	Unresolved		WCSP (in review)
Viola brachyantha Stapf	Unresolved		WCSP (in review)
Viola brachycentra Hayata	Synonym		TRO
Viola brachyceras Turcz.	Accepted		TRO
Viola brachypetala Gay	Accepted		TRO
Viola brachyphylla W.Becker	Unresolved		WCSP (in review)
Viola brachysepala Maxim.	Synonym		TRO
Viola brainerdii Greene	Synonym		TRO
Viola brandisii W.Becker	Unresolved		WCSP (in review)
Viola × brauniae Grover ex Cooperr.	Unresolved		WCSP (in review)
Viola × braunii Grover	Unresolved		WCSP (in review)
Viola × braunii Borbás	Unresolved		WCSP (in review)
Viola brevicaulis Raeusch.	Unresolved		WCSP (in review)
Viola × brevicornis Biau	Unresolved		WCSP (in review)
Viola brevistipulata W.Becker	Unresolved		WCSP (in review)
Viola bridgesii Britton	Accepted		TRO
Viola brittoniana Pollard	Synonym		TRO
Viola brittoniana var. pectinata (E.P. Bicknell) Alexander	Synonym		TRO
Viola brittoniana f. pectinata (E.P. Bicknell) Gil-ad	Unresolved		TRO
Viola brockmanniana W.Becker	Unresolved		WCSP (in review)
Viola brooksii Kellogg	Unresolved		WCSP (in review)
Viola broussonetiana Schult.	Unresolved		WCSP (in review)
Viola bruneauniana Bailly	Unresolved		WCSP (in review)
Viola brunneostipulosa Hand.-Mazz.	Synonym		TRO
Viola bubanii Timb.-Lagr.	Unresolved		WCSP (in review)
Viola buchaniana DC. ex D.Don	Unresolved		WCSP (in review)
Viola buchtieniana W.Becker	Unresolved		WCSP (in review)
Viola buchtienii Gand.	Accepted		TRO
Viola bulbosa Maxim.	Accepted		TRO
Viola bulbosa var. franchetii H. Boissieu	Synonym		TRO
Viola bulbosa subsp. tuberifera (Franch.) W. Becker	Synonym		TRO
Viola bulgarica W.Becker	Unresolved		WCSP (in review)
Viola burgersdijkii Oudem.	Unresolved		WCSP (in review)
Viola × burnatii Gremli	Unresolved		WCSP (in review)
Viola bustillosia Gay	Accepted		TRO
Viola buxifolia (Vent.) Poir.	Synonym		TRO
Viola cadevallii Pau	Unresolved		WCSP (in review)
Viola × caesariensis House	Unresolved		WCSP (in review)
Viola caespitosa D. Don	Synonym		TRO
Viola caflishii Woerl.	Unresolved		WCSP (in review)
Viola calabra A.Huet ex Nyman	Unresolved		WCSP (in review)
Viola calaminaria Lej.	Unresolved		WCSP (in review)
Viola calcarata Vill.	Unresolved		WCSP (in review)
Viola calcarata L.	Unresolved		WCSP (in review)
Viola calcarata Sm.	Unresolved		WCSP (in review)
Viola calcarata Munby	Unresolved		WCSP (in review)
Viola calcarea (Bab.) Greg.	Unresolved		WCSP (in review)
Viola calceolaria L.	Synonym		WCSP (in review)
Viola calceolaria Sessé & Moc.	Synonym		TRO
Viola calchaquiensis W.Becker	Unresolved		WCSP (in review)
Viola calderensis Becker	Accepted		TRO
Viola caleyana G.Don	Unresolved		WCSP (in review)
Viola californica Greene	Unresolved		WCSP (in review)
Viola californica M.S.Baker	Unresolved		WCSP (in review)
Viola callosa Benth.	Synonym		TRO
Viola calthifolia Poir.	Unresolved		WCSP (in review)
Viola calycina Boiss. & Heldr.	Unresolved		WCSP (in review)
Viola cameleo H. Boissieu	Accepted		TRO
Viola campestris M.Bieb.	Unresolved		WCSP (in review)
Viola canadensis L.	Accepted		WCSP (in review)
Viola canadensis var. neomexicana (Greene) House ex Rydb.	Synonym		TRO
Viola canadensis var. rugulosa (Greene) C.L. Hitchc.	Accepted		TRO
Viola canadensis var. rydbergii (Greene) House ex Rydb.	Synonym		TRO
Viola canadensis subsp. rydbergii (Greene) House	Synonym		TRO
Viola canadensis var. scopulorum A. Gray	Synonym		TRO
Viola canadensis subsp. scopulorum (A. Gray) House	Accepted		TRO
Viola canadensis var. sitchensis Bong. ex Ledeb.	Synonym		TRO
Viola canariensis Berthel.	Unresolved		WCSP (in review)
Viola candidula Nieuwl.	Unresolved		WCSP (in review)
Viola canescens Wall.	Accepted		TRO
Viola canescens f. glabrescens W. Becker	Synonym		TRO
Viola canescens subsp. lanuginosa W. Becker	Synonym		TRO
Viola canina L.	Unresolved		WCSP (in review)
Viola canina Cham. & Schltdl.	Unresolved		WCSP (in review)
Viola canina var. acuminata (Ledeb.) Regel	Synonym		TRO
Viola canina var. adunca (Sm.) A. Gray	Synonym		TRO
Viola canina var. longipes (Nutt.) S. Watson	Synonym		TRO
Viola canina subsp. montana Hartmann	Synonym		TRO
Viola canina var. multicaulis (Torr. & A. Gray) A. Gray	Unresolved		TRO
Viola canina var. oxyceras S. Watson	Synonym		TRO
Viola canina var. rupestris (F.W. Schmidt) Regel	Synonym		TRO
Viola × caniniformis K.Richt.	Unresolved		WCSP (in review)
Viola × canninefas Kloos	Unresolved		WCSP (in review)
Viola cano-barbata Leyb.	Unresolved		WCSP (in review)
Viola cantiana Drabble	Unresolved		WCSP (in review)
Viola capensis Thunb.	Unresolved		WCSP (in review)
Viola capillaris Gingins	Synonym		TRO
Viola capillaris var. dumetorum Reiche	Unresolved		TRO
Viola cardminefolia Greene	Unresolved		WCSP (in review)
Viola × carinthiaca Borbás	Unresolved		WCSP (in review)
Viola carlesii Nakai	Unresolved		WCSP (in review)
Viola carnosula W. Becker	Synonym		TRO
Viola carolina Greene	Unresolved		WCSP (in review)
Viola × carpatica Borbás	Unresolved		WCSP (in review)
Viola cascadensis M.S. Baker	Synonym		TRO
Viola caspia (Rupr.) Freyn	Unresolved		WCSP (in review)
Viola cassinensis Strobl	Unresolved		WCSP (in review)
Viola castillensis W.Becker	Unresolved		WCSP (in review)
Viola castillonii (W.Becker) Xifreda & Sanso	Unresolved		WCSP (in review)
Viola catalonica W.Becker	Unresolved		WCSP (in review)
Viola caucasica Kolenati	Unresolved		TRO
Viola caulescens Molina ex F.Phil.	Unresolved		WCSP (in review)
Viola cavillieri W.Becker	Unresolved		WCSP (in review)
Viola cazorlensis Gand.	Unresolved		WCSP (in review)
Viola × cebennensis Chatenier	Unresolved		WCSP (in review)
Viola celebica W.Becker	Unresolved		WCSP (in review)
Viola × celinae Sennen & Gonzalo	Unresolved		WCSP (in review)
Viola celtica Sauze & Maillard ex Nyman	Unresolved		WCSP (in review)
Viola cenisia subsp. lapeyrousiana Rouy & Foucaud	Unresolved		WCSP (in review)
Viola centellifolia Greene	Unresolved		WCSP (in review)
Viola centronum H.Perrier ex W.Becker	Unresolved		WCSP (in review)
Viola cephalonica Bornm.	Unresolved		WCSP (in review)
Viola cerasifolia Saint-Hilaire	Accepted		TRO
Viola × cestrica House	Unresolved		WCSP (in review)
Viola chaerophylloides (Regel) W. Becker	Accepted		TRO
Viola chaerophylloides var. chaerophylloides	Accepted		TRO
Viola chaerophylloides var. sieboldiana (Maxim.) Makino	Accepted		TRO
Viola chaerophylloides f. sieboldiana (Maxim.) F. Maek.	Synonym		TRO
Viola chalcosperma Brainerd	Synonym		TRO
Viola chamaedrifolia Ruiz & Pav. ex Ging.	Unresolved		WCSP (in review)
Viola chamaedrys Leybold	Accepted		TRO
Viola chamissoniana Ging.	Unresolved		WCSP (in review)
Viola × champlainensis House	Unresolved		WCSP (in review)
Viola changii J.S. Zhou & F.W.Xing	Accepted		TRO
Viola charlestonensis M.S. Baker & J.C. Clausen	Accepted		TRO
Viola chassanica Kork.	Unresolved		WCSP (in review)
Viola cheelooi Jacot Guill.	Unresolved		WCSP (in review)
Viola cheiranthifolia Humb. & Bonpl.	Unresolved		WCSP (in review)
Viola chejuensis Y.N.Lee & Y.C.Oh	Unresolved		WCSP (in review)
Viola chelmea Boiss.	Unresolved		WCSP (in review)
Viola × chenevardii W.Becker	Unresolved		WCSP (in review)
Viola chiapasiensis W.Becker	Unresolved		WCSP (in review)
Viola chillanensis Phil.	Unresolved		WCSP (in review)
Viola chinensis G. Don	Synonym		TRO
Viola chinensis f. alboviolacea Skvortsov	Synonym		TRO
Viola chinensis f. anomala Skvortsov	Synonym		TRO
Viola chinensis f. communis Skvortsov	Synonym		TRO
Viola chinensis f. dissecta Skvortsov	Synonym		TRO
Viola chinensis f. glabra Skvortsov	Synonym		TRO
Viola chingiana W. Becker	Synonym		TRO
Viola christii W.Wolf	Unresolved		WCSP (in review)
Viola chrysantha Schrad. ex Rchb.	Synonym		TRO
Viola chrysantha var. glaberrima Torr.	Synonym		TRO
Viola ciliaris Willd. ex W.Becker	Unresolved		WCSP (in review)
Viola ciliata Schltdl.	Synonym		TRO
Viola cilicica Contandr. & Quézel	Unresolved		WCSP (in review)
Viola ciliolata Schltr.	Unresolved		TRO
Viola cinerascens A.Kern.	Unresolved		WCSP (in review)
Viola cinerea Boiss.	Unresolved		WCSP (in review)
Viola cinerea var. stocksii (Boiss.) W. Becker	Unresolved		TRO
Viola circaeoides Steud.	Unresolved		WCSP (in review)
Viola clandestina Pursh	Unresolved		WCSP (in review)
Viola clarkiae A. Nelson	Synonym		TRO
Viola clauseniana M.S.Baker	Unresolved		WCSP (in review)
Viola claytonioides Steud.	Unresolved		WCSP (in review)
Viola cleistogamoides (L.G.Adams) Seppelt	Unresolved		WCSP (in review)
Viola clementiana Boiss.	Unresolved		WCSP (in review)
Viola cluniensis Murr & Pôll	Unresolved		WCSP (in review)
Viola coccinea Pav.	Unresolved		WCSP (in review)
Viola cochleata Coincy	Unresolved		WCSP (in review)
Viola cochranei Ballard	Accepted		TRO
Viola cognata Greene	Synonym		TRO
Viola collina Besser	Accepted		WCSP (in review)
Viola collina var. collina	Accepted		TRO
Viola × colliniformis Murr	Unresolved		WCSP (in review)
Viola colombiana W. Becker	Synonym		TRO
Viola colubrina Wedd. ex W.Becker	Unresolved		WCSP (in review)
Viola columnaris Skottsb.	Accepted		TRO
Viola comberi W.Becker	Unresolved		WCSP (in review)
Viola commersonii DC.	Accepted		TRO
Viola communis Pollard	Unresolved		WCSP (in review)
Viola commutata Waisb.	Unresolved		WCSP (in review)
Viola comollia Messara	Unresolved		WCSP (in review)
Viola compacta Greene	Unresolved		WCSP (in review)
Viola concolor T.F. Forst.	Synonym		TRO
Viola concordifolia Ching J. Wang	Synonym		TRO
Viola concordifolia var. hirtipedicellata Ching J. Wang	Synonym		TRO
Viola conferta (W. Becker) Nakai	Synonym		TRO
Viola confertifolia Chang	Accepted		TRO
Viola confinis Jord. ex Nyman	Unresolved		WCSP (in review)
Viola confusa Champ. ex Benth.	Synonym		TRO
Viola confusa subsp. nagasakiensis (W. Becker) F. Maek. & Hashim.	Synonym		TRO
Viola congener Leconte	Unresolved		WCSP (in review)
Viola congesta Gillies ex Hook. & Arn.	Unresolved		WCSP (in review)
Viola conilii Franch. & Sav.	Unresolved		WCSP (in review)
Viola conjugens Greene	Unresolved		WCSP (in review)
Viola consanguinea Schott	Unresolved		WCSP (in review)
Viola consimilis Jord.	Unresolved		WCSP (in review)
Viola × consocia House	Unresolved		WCSP (in review)
Viola × consona House	Unresolved		WCSP (in review)
Viola × consorbrina House	Unresolved		WCSP (in review)
Viola consors Greene	Unresolved		WCSP (in review)
Viola conspersa Rchb.	Accepted		WCSP (in review)
Viola conspersa f. masonii (Farw.) House	Synonym		TRO
Viola conspersa var. masonii Farw.	Synonym		TRO
Viola contempta Jord.	Unresolved		WCSP (in review)
Viola × conturbata House	Unresolved		WCSP (in review)
Viola × convicta House	Unresolved		WCSP (in review)
Viola × cooperrideri H.E.Ballard	Unresolved		WCSP (in review)
Viola × coquoziana W.Becker	Unresolved		WCSP (in review)
Viola corallensis Phil.	Unresolved		WCSP (in review)
Viola corchorifolia Dombey ex Ging.	Synonym		TRO
Viola cordata Walter	Synonym		TRO
Viola cordifolia W. Becker	Synonym		TRO
Viola cordulata Greene	Synonym		TRO
Viola coreana Boissieu	Unresolved		WCSP (in review)
Viola cornuta Desf.	Unresolved		WCSP (in review)
Viola cornuta L.	Unresolved		WCSP (in review)
Viola coronifera W.Becker	Unresolved		WCSP (in review)
Viola corralensis Phil.	Accepted		TRO
Viola corsica Nyman	Unresolved		WCSP (in review)
Viola corsica Jord.	Unresolved		WCSP (in review)
Viola corsica subsp. limbarae Merxm. & W.Lippert	Unresolved		WCSP (in review)
Viola cotyledon Ging.	Accepted		WCSP (in review)
Viola × cracoviensis Zmuda	Unresolved		WCSP (in review)
Viola crassa Makino	Unresolved		WCSP (in review)
Viola crassicalcarata Ching J. Wang	Synonym		TRO
Viola crassicornis W. Becker & Hult.	Synonym		TRO
Viola crassifolia Fenzl	Unresolved		WCSP (in review)
Viola crassiuscula Bory	Unresolved		WCSP (in review)
Viola crassula Greene	Unresolved		WCSP (in review)
Viola crenulata Greene	Synonym		TRO
Viola cretacea Klokov	Synonym		TRO
Viola crinita Wedd. ex W.Becker	Unresolved		WCSP (in review)
Viola cryana Royer ex Gillot	Unresolved		WCSP (in review)
Viola cuatrecasasii L.B. Sm. & A. Fernández	Accepted		TRO
Viola cucullata Aiton	Accepted		TRO
Viola cucullata var. alba Torr. & A. Gray	Synonym		TRO
Viola cucullata var. leptosepala (Greene) W. Stone	Accepted		TRO
Viola cucullata var. macrotis (Greene) W. Stone	Accepted		TRO
Viola cucullata f. prionosepala (Greene) Brainerd	Accepted		TRO
Viola cucullata var. sororia (Willd.) Torr. & A. Gray	Synonym		TRO
Viola cucullifolia Wender.	Unresolved		WCSP (in review)
Viola cucullifolia Wender. ex Steud.	Unresolved		WCSP (in review)
Viola cuicochensis Hieron.	Accepted		TRO
Viola cumingii W. Becker	Synonym		TRO
Viola cuneata S.Watson	Unresolved		WCSP (in review)
Viola cunninghamii Hook.f.	Unresolved		WCSP (in review)
Viola curicoensis Becker	Accepted		TRO
Viola × curnowii Druce	Unresolved		WCSP (in review)
Viola curtisii E.Forst.	Unresolved		WCSP (in review)
Viola curvicalcarata W.Becker & H.Boissieu	Unresolved		WCSP (in review)
Viola curvistylis Boissieu ex Gagnep.	Unresolved		WCSP (in review)
Viola cuspidifolia W. Becker	Accepted		TRO
Viola cyanea Celak.	Unresolved		WCSP (in review)
Viola cyathiformis Becker,W.	Accepted		TRO
Viola cyclophylla Greene	Unresolved		WCSP (in review)
Viola cyclophylla Gand.	Unresolved		WCSP (in review)
Viola cypria H.Lindb.	Unresolved		WCSP (in review)
Viola czemalensis Zuev	Unresolved		WCSP (in review)
Viola dacica Borbás	Unresolved		WCSP (in review)
Viola dactylifera Greene	Unresolved		WCSP (in review)
Viola dactyloides Schult.	Accepted		WCSP (in review)
Viola dactyloides var. multipartita W. Becker	Synonym		TRO
Viola dageletiana Nakai	Unresolved		WCSP (in review)
Viola dalatensis Gagnep.	Unresolved		WCSP (in review)
Viola danubialis Borbás	Unresolved		WCSP (in review)
Viola dasyneura Greene	Unresolved		WCSP (in review)
Viola dasyphylla W.Becker	Unresolved		WCSP (in review)
Viola davidii Franch.	Accepted		TRO
Viola davidii var. paucicrenata W. Becker	Synonym		TRO
Viola × davisii House	Unresolved		WCSP (in review)
Viola debilis Michx.	Unresolved		WCSP (in review)
Viola debilis Pursh	Unresolved		WCSP (in review)
Viola decipiens Reiche	Accepted		TRO
Viola declinata Waldst. & Kit.	Unresolved		WCSP (in review)
Viola decora Kellogg	Unresolved		WCSP (in review)
Viola decora Formánek	Unresolved		WCSP (in review)
Viola decumbens L.f.	Unresolved		WCSP (in review)
Viola decumbens Moench	Unresolved		WCSP (in review)
Viola decumbens J.F.Gmel.	Unresolved		WCSP (in review)
Viola decumbens var. scrotiformis Jessop	Unresolved		TRO
Viola degener Schweigg. ex Mert. & W.D.J.Koch	Unresolved		WCSP (in review)
Viola dehnhardtii Ten.	Synonym		WCSP (in review)
Viola delavayi Franch.	Accepted		TRO
Viola delavayi f. depauperata Diels	Synonym		TRO
Viola delavayi var. villosa W. Becker	Synonym		TRO
Viola delphinantha Boiss.	Unresolved		WCSP (in review)
Viola delphinensis Jord.	Unresolved		WCSP (in review)
Viola delphinifolia Nutt.	Unresolved		WCSP (in review)
Viola deltoidea Yatabe	Synonym		TRO
Viola demetria Prolongo ex Boiss.	Unresolved		WCSP (in review)
Viola deminuta Schur	Unresolved		WCSP (in review)
Viola demissa Greene	Synonym		TRO
Viola denarieana Beauverd	Unresolved		WCSP (in review)
Viola dentariifolia H. Boissieu	Synonym		TRO
Viola dentata Pursh	Unresolved		WCSP (in review)
Viola denticulosa Pollard	Unresolved		WCSP (in review)
Viola derelicta Jord.	Unresolved		WCSP (in review)
Viola deseglisei Jord. ex Boreau	Unresolved		WCSP (in review)
Viola desertorum Greene	Synonym		TRO
Viola × desetangsii Camus & Har.	Unresolved		WCSP (in review)
Viola diamantiaca Nakai	Accepted		TRO
Viola diamantiaca var. glabrior Kitag.	Synonym		TRO
Viola diamantiaca f. glabrior (Kitag.) Kitag.	Synonym		TRO
Viola diandra L.	Unresolved		WCSP (in review)
Viola dichotoma Sessé & Moc. ex Ging.	Synonym		TRO
Viola dichroa Boiss.	Unresolved		WCSP (in review)
Viola dicksonii Greene	Unresolved		WCSP (in review)
Viola diffusa Ging.	Synonym		TRO
Viola diffusa var. brevibarbata Ching J. Wang	Synonym		TRO
Viola diffusa var. brevisepala W. Becker	Synonym		TRO
Viola diffusa var. glabella H. Boissieu	Synonym		TRO
Viola diffusa var. glaberrima W. Becker	Synonym		TRO
Viola diffusa subsp. tenuis (Benth.) W. Becker	Synonym		TRO
Viola diffusa var. tomentosa W. Becker	Synonym		TRO
Viola diffusoides Ching J. Wang	Synonym		TRO
Viola × digenea Rouy & Foucaud	Unresolved		WCSP (in review)
Viola digitata Pursh	Unresolved		WCSP (in review)
Viola digitata Willd. ex Schult.	Unresolved		WCSP (in review)
Viola dimorphophylla Y.S. Chen & Q.E.Yang	Accepted		TRO
Viola dioszegiana Borbás	Unresolved		WCSP (in review)
Viola dirimliensis Blaxland	Unresolved		WCSP (in review)
Viola dirphya Tiniakou	Unresolved		WCSP (in review)
Viola × discors House	Unresolved		WCSP (in review)
Viola discurrens Greene	Unresolved		WCSP (in review)
Viola disjuncta W.Becker	Accepted		WCSP (in review)
Viola dissecta Ledeb.	Accepted		WCSP (in review)
Viola dissecta var. albida (Palib.) Nakai	Synonym		TRO
Viola dissecta var. chaerophylloides (Regel) Makino	Synonym		TRO
Viola dissecta var. dissecta	Accepted		TRO
Viola dissecta var. incisa (Turcz.) Y.S. Chen	Synonym		TRO
Viola dissecta var. pubescens (Regel) Kitag.	Synonym		TRO
Viola dissecta f. pubescens (Regel) Kitag.	Synonym		TRO
Viola dissecta f. sieboldiana (Maxim.) Makino	Synonym		TRO
Viola dissecta var. sieboldiana (Maxim.) Nakai	Synonym		TRO
Viola dissecta var. takahashii Nakai	Synonym		TRO
Viola × dissena House	Unresolved		WCSP (in review)
Viola × dissita House	Unresolved		WCSP (in review)
Viola distans Wall.	Synonym		TRO
Viola diversifolia W.Becker	Unresolved		WCSP (in review)
Viola doerfleri Degen	Unresolved		WCSP (in review)
Viola doii Taken.	Unresolved		WCSP (in review)
Viola dolichocentra Botsch.	Unresolved		WCSP (in review)
Viola dolichoceras Ching J. Wang	Synonym		TRO
Viola dombeyana DC.	Accepted		TRO
Viola domburgensis W.Becker	Unresolved		WCSP (in review)
Viola domestica E.P.Bicknell	Unresolved		WCSP (in review)
Viola domeykoana Gay	Accepted		TRO
Viola domingensis Urb.	Unresolved		WCSP (in review)
Viola donetzkiensis Klokov	Unresolved		WCSP (in review)
Viola douglasii Steud.	Unresolved		WCSP (in review)
Viola × dowelliana House	Unresolved		WCSP (in review)
Viola dravica Murr	Unresolved		WCSP (in review)
Viola drepanophora Greene	Unresolved		WCSP (in review)
Viola drymeia Schur	Unresolved		WCSP (in review)
Viola × dubia Wiesb.	Unresolved		WCSP (in review)
Viola dubia E.H.L.Krause	Unresolved		WCSP (in review)
Viola dubia Wall.	Unresolved		WCSP (in review)
Viola dubyana Burnat ex Gremli	Unresolved		WCSP (in review)
Viola duclouxii W. Becker	Accepted		TRO
Viola duffortii Fouill.	Unresolved		WCSP (in review)
Viola × dukadjinica W.Becker & Kosanin	Unresolved		WCSP (in review)
Viola dumetorum Phil.	Synonym		TRO
Viola dumoulinii Groner	Unresolved		WCSP (in review)
Viola durennei Petitm.	Unresolved		WCSP (in review)
Viola duriprati R.E.Fr.	Unresolved		WCSP (in review)
Viola dusenii W.Becker & Sam.	Unresolved		WCSP (in review)
Viola dyris Maire	Unresolved		WCSP (in review)
Viola × eamesii House	Unresolved		WCSP (in review)
Viola × eamsii House	Unresolved		WCSP (in review)
Viola ebracteolata Fenzl	Unresolved		WCSP (in review)
Viola eburnea Gerbault	Unresolved		WCSP (in review)
Viola × eclipes H.E.Ballard	Unresolved		WCSP (in review)
Viola ecuadorensis W. Becker	Accepted		TRO
Viola edanoii W.Becker	Unresolved		WCSP (in review)
Viola edulis Spach	Unresolved		WCSP (in review)
Viola effusa W.Becker	Unresolved		WCSP (in review)
Viola × egglestoniana House	Unresolved		WCSP (in review)
Viola egglestonii Brainerd	Synonym		TRO
Viola × egregia House	Unresolved		WCSP (in review)
Viola × eichenfeldii Halácsy	Unresolved		WCSP (in review)
Viola einseleana F.W.Schultz ex Nyman	Unresolved		WCSP (in review)
Viola eizanensis (Makino) Makino	Unresolved		WCSP (in review)
Viola × eizasieboldii Sugim. ex T.Shimizu	Unresolved		WCSP (in review)
Viola × ekstroemiana W.Becker	Unresolved		WCSP (in review)
Viola elatior Fr.	Synonym		TRO
Viola elatior subsp. fordanii Soó	Synonym		TRO
Viola elegantula Schott	Unresolved		WCSP (in review)
Viola elegantula Greene	Unresolved		WCSP (in review)
Viola eliasii Sennen & Pau	Unresolved		WCSP (in review)
Viola elisabethae Klokov	Unresolved		WCSP (in review)
Viola emarginata (Nutt.) Leconte	Accepted		TRO
Viola emarginata var. subsinuata Greene	Synonym		TRO
Viola emeiensis Ching J. Wang	Synonym		TRO
Viola eminens K.R.Thiele & Prober	Unresolved		WCSP (in review)
Viola eminii (Engl.) R.E. Fr.	Accepted		TRO
Viola emirnensis Bojer	Synonym		TRO
Viola encycla Greene	Unresolved		WCSP (in review)
Viola enneasperma L.	Synonym		WCSP (in review)
Viola epipsila Ledeb.	Synonym		TRO
Viola epipsila var. repens W.Becker	Synonym		WCSP (in review)
Viola epipsila subsp. repens (Turcz.) W. Becker	Synonym		TRO
Viola epipsiloides Á.Löve & D.Löve	Accepted		WCSP (in review)
Viola epirota (Halácsy) Raus	Unresolved		WCSP (in review)
Viola erecta H.M.Myers	Unresolved		WCSP (in review)
Viola erecta Gilib.	Unresolved		WCSP (in review)
Viola erecta Roth	Unresolved		WCSP (in review)
Viola erectifolia A. Nelson	Synonym		TRO
Viola ericetorum Schrad. ex Link	Unresolved		WCSP (in review)
Viola eriksoniana W.Becker	Unresolved		WCSP (in review)
Viola eriocarpa Schwein.	Synonym		TRO
Viola eriocarpa var. leiocarpa Fernald & Wiegand	Synonym		TRO
Viola ermenekensis Yild. & Dinç	Unresolved		WCSP (in review)
Viola × erratica House	Unresolved		WCSP (in review)
Viola erythraea (Fiori) Chiov.	Unresolved		WCSP (in review)
Viola escarapela J.M. Watson & A.R. Flores	Accepted		TRO
Viola escondidaensis W.Becker	Unresolved		WCSP (in review)
Viola esculenta Elliott	Synonym		TRO
Viola etbaica Schweinf.	Unresolved		WCSP (in review)
Viola etrusca Erben	Unresolved		WCSP (in review)
Viola euboea Halácsy	Unresolved		TRO
Viola eucycla Greene	Unresolved		WCSP (in review)
Viola eugeniae Parl.	Unresolved		WCSP (in review)
Viola eurybiifolia Greene	Unresolved		WCSP (in review)
Viola evae Hieron.	Accepted		TRO
Viola excelsa Humb. & Bonpl. ex Schult.	Unresolved		WCSP (in review)
Viola × excerpta House	Unresolved		WCSP (in review)
Viola excisa Hance	Synonym		TRO
Viola exigua W. Becker	Synonym		TRO
Viola exigua var. castillonii W.Becker	Unresolved		WCSP (in review)
Viola exilis Phil.	Synonym		TRO
Viola eximia Formánek	Unresolved		WCSP (in review)
Viola exsul J.M.Watson & A.R.Flores	Unresolved		WCSP (in review)
Viola extremiorientalis Vorosch. & N.S.Pavlova	Unresolved		WCSP (in review)
Viola falcata Greene	Unresolved		WCSP (in review)
Viola falconeri Hook. f. & Thomson	Synonym		TRO
Viola fallacissima Greene	Unresolved		WCSP (in review)
Viola familiaris Greene	Unresolved		WCSP (in review)
Viola fargesii H. Boissieu	Accepted		TRO
Viola faurieana W. Becker	Accepted		TRO
Viola favratii Hausskn. ex Favrat	Unresolved		WCSP (in review)
Viola fedtschenkoana W. Becker	Accepted		TRO
Viola fennica F.Nyl.	Unresolved		WCSP (in review)
Viola fennica Stephan ex Nyman	Unresolved		WCSP (in review)
Viola × fernaldii House	Unresolved		WCSP (in review)
Viola ferrariensis Campana ex Pio	Unresolved		WCSP (in review)
Viola × festata House	Unresolved		WCSP (in review)
Viola fibrillosa W.Becker	Unresolved		WCSP (in review)
Viola filicaulis Hook.f.	Unresolved		WCSP (in review)
Viola filicetorum Greene	Unresolved		WCSP (in review)
Viola filifera Kom.	Synonym		TRO
Viola filiformis Ruiz & Pav. ex Ging.	Unresolved		WCSP (in review)
Viola filipes Greene	Unresolved		WCSP (in review)
Viola fimbriata Steud.	Unresolved		WCSP (in review)
Viola fimbriatula Sm.	Synonym		TRO
Viola fimbriatula f. umbelliflora Fernald	Synonym		TRO
Viola fischeri W.Becker	Unresolved		WCSP (in review)
Viola fischeri Sweet	Unresolved		WCSP (in review)
Viola fissifolia Kitag.	Synonym		TRO
Viola flabellifolia Lodd.	Unresolved		WCSP (in review)
Viola flaccida Makino	Unresolved		WCSP (in review)
Viola flagelliformis Hemsl.	Accepted		TRO
Viola flahaultiana Sennen	Unresolved		WCSP (in review)
Viola flavicans Wedd.	Accepted		TRO
Viola flavicornis E.Forst. ex Nyman	Unresolved		WCSP (in review)
Viola flavicornis Sm.	Unresolved		WCSP (in review)
Viola flavida Bureau & Franch.	Synonym		TRO
Viola flaviflora Nakai	Unresolved		WCSP (in review)
Viola flavovirens Pollard	Synonym		TRO
Viola fletcheri Greene	Unresolved		WCSP (in review)
Viola flettii Piper	Unresolved		WCSP (in review)
Viola florariensis Karrer	Unresolved		WCSP (in review)
Viola floribunda Jord.	Unresolved		WCSP (in review)
Viola floridana Brainerd	Synonym		TRO
Viola flos-idae Hieron.	Unresolved		WCSP (in review)
Viola flos-mariae Hieron.	Unresolved		WCSP (in review)
Viola fluehmannii Phil.	Unresolved		WCSP (in review)
Viola foliosa Celak.	Unresolved		WCSP (in review)
Viola fontana Greene	Unresolved		WCSP (in review)
Viola formosa Vuk.	Unresolved		WCSP (in review)
Viola formosana Hayata	Accepted		TRO
Viola formosana var. formosana	Accepted		TRO
Viola formosana var. kawakamii (Hayata) J.C. Wang	Synonym		TRO
Viola formosana var. kawakamii (Hayata) Y.S. Chen & Q.E.Yang	Accepted		TRO
Viola formosana var. stenopetala (Hayata) J.C. Wang, T.C. Huang & T. Hashim.	Synonym		TRO
Viola formosana var. tozanensis (Hayata) C.F. Hsieh	Synonym		TRO
Viola forrestiana W. Becker	Accepted		TRO
Viola forskaalii Greuter	Unresolved		WCSP (in review)
Viola foucaudii Sav.	Unresolved		WCSP (in review)
Viola foudrasii Jord.	Unresolved		WCSP (in review)
Viola fragrans Wiesb. ex Sabr.	Unresolved		WCSP (in review)
Viola fragrans Sieber	Unresolved		WCSP (in review)
Viola franchetii H.Boissieu	Unresolved		WCSP (in review)
Viola frank-smithii N.H.Holmgren	Unresolved		WCSP (in review)
Viola fraterna Hegetschw.	Unresolved		WCSP (in review)
Viola friderici Becker	Accepted		TRO
Viola frigida Phil.	Accepted		TRO
Viola frigida var. borchersii Reiche	Synonym		TRO
Viola frondosa Velen.	Unresolved		WCSP (in review)
Viola frutescens Ruiz & Pav. ex Ging.	Unresolved		WCSP (in review)
Viola frutescens Roth	Unresolved		WCSP (in review)
Viola fruticans Bubani	Unresolved		WCSP (in review)
Viola fruticosa W.Becker	Unresolved		WCSP (in review)
Viola × fryeri Druce	Unresolved		WCSP (in review)
Viola × fujisanensis S.Watan.	Unresolved		WCSP (in review)
Viola fukienensis W. Becker	Synonym		TRO
Viola fulcrata Greene	Unresolved		WCSP (in review)
Viola × funesta K.Richt.	Unresolved		WCSP (in review)
Viola funghuangensis P.Y. Fu & Y.C. Teng	Synonym		TRO
Viola fuscifolia W. Becker	Accepted		TRO
Viola fuscoviolacea (L.G.Adams) T.A.James	Unresolved		WCSP (in review)
Viola fusiformis Sm.	Synonym		TRO
Viola galacifolia Greene	Unresolved		WCSP (in review)
Viola galeanaensis M.S. Baker	Accepted		TRO
Viola ganchouenensis W. Becker	Synonym		TRO
Viola ganderi Hausm. ex Nyman	Unresolved		WCSP (in review)
Viola × ganeschinii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola garganica Strobl	Unresolved		WCSP (in review)
Viola geminiflora Greene	Synonym		TRO
Viola genevensis Chenev.	Unresolved		WCSP (in review)
Viola germainii Sparre	Accepted		TRO
Viola × gerstlaueri L.Gross	Unresolved		WCSP (in review)
Viola × gerstlaueri Gross	Unresolved		WCSP (in review)
Viola glabella Nutt.	Unresolved		WCSP (in review)
Viola glaberrima C. Serg.	Synonym		TRO
Viola glaberrima (Ging.) House	Accepted		TRO
Viola × glabrescens (Neuman) Tzvelev	Unresolved		WCSP (in review)
Viola glacialis Poepp. & Endl.	Accepted		TRO
Viola glandularis H.E. Ballard & P. Jørg.	Accepted		TRO
Viola glandulifera Hook.	Synonym		TRO
Viola glandulosa Dombey ex Ging. [Invalid]	Synonym		WCSP (in review)
Viola glareosa Douglas ex Hook.	Synonym		TRO
Viola glauca M.Bieb.	Unresolved		WCSP (in review)
Viola glaucescens Oudem.	Unresolved		WCSP (in review)
Viola glechomoides Leyb.	Accepted		TRO
Viola × gloggnitzensis K.Richt.	Unresolved		WCSP (in review)
Viola glutinosa Poir.	Unresolved		WCSP (in review)
Viola gmeliniana Roem. & Schult.	Accepted		TRO
Viola gmeliniana var. albiflora W. Becker	Synonym		TRO
Viola gmeliniana var. glabra Ledeb.	Synonym		TRO
Viola gmeliniana var. hispida Ledeb.	Synonym		TRO
Viola × godlewskii Zmuda	Unresolved		WCSP (in review)
Viola godoyae Phil.	Accepted		TRO
Viola gomphopetala Greene	Synonym		TRO
Viola gonzalii Sennen	Unresolved		WCSP (in review)
Viola gostivariensis Bornm.	Unresolved		TRO
Viola × gotlandica W.Becker	Unresolved		WCSP (in review)
Viola gracilescens Jord.	Unresolved		WCSP (in review)
Viola gracilis Sm.	Unresolved		WCSP (in review)
Viola gracilis Martrin-Donos ex Nyman	Unresolved		WCSP (in review)
Viola gracilis Rchb.	Unresolved		WCSP (in review)
Viola gracilis Biv.	Unresolved		WCSP (in review)
Viola gracilis R.Br. ex Ging.	Unresolved		WCSP (in review)
Viola gracilis Clementi	Unresolved		WCSP (in review)
Viola gracillima Saint-Hilaire	Accepted		TRO
Viola graeca Hal.	Unresolved		TRO
Viola grahamii Benth.	Accepted		TRO
Viola granatensis Huter	Unresolved		WCSP (in review)
Viola grandidentata Kalela	Unresolved		WCSP (in review)
Viola grandiflora Griseb.	Unresolved		WCSP (in review)
Viola grandiflora L.	Unresolved		WCSP (in review)
Viola grandifolia Wall.	Unresolved		WCSP (in review)
Viola grandis Greene	Unresolved		WCSP (in review)
Viola grandisepala W. Becker	Accepted		TRO
Viola × granitica Chatenier	Unresolved		WCSP (in review)
Viola granulosa Wedd.	Accepted		TRO
Viola grayi Franch. & Sav.	Unresolved		WCSP (in review)
Viola grayi var. candida H. Boissieu	Synonym		TRO
Viola greatrexii Nakai & F.Maek.	Unresolved		WCSP (in review)
Viola × greenei House	Unresolved		WCSP (in review)
Viola × greenmanii House	Unresolved		WCSP (in review)
Viola × gregoriae Druce	Unresolved		WCSP (in review)
Viola × gremblichii Murr	Unresolved		WCSP (in review)
Viola griffithiana Boiss.	Unresolved		WCSP (in review)
Viola grisebachiana Vis.	Unresolved		WCSP (in review)
Viola gronovii Willd. ex Schult.	Unresolved		WCSP (in review)
Viola × grubovii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola grypoceras A. Gray	Accepted		TRO
Viola grypoceras var. barbata W. Becker	Synonym		TRO
Viola grypoceras var. pubescens Nakai	Synonym		TRO
Viola guadalupensis A.M.Powell & Wauer	Unresolved		WCSP (in review)
Viola guangzhouensis A.Q. Dong, J.S. Zhou & F.W. Xing	Unresolved		TRO
Viola guatemalensis W. Becker	Accepted		TRO
Viola guestphalica Nauenb.	Unresolved		WCSP (in review)
Viola guffroyi Rouy	Unresolved		WCSP (in review)
Viola guineensis Schumach. & Thonn.	Synonym		TRO
Viola × guitteanae Giraudias	Unresolved		WCSP (in review)
Viola gymnocarpa Janka	Unresolved		WCSP (in review)
Viola hakonensis Nakai	Unresolved		WCSP (in review)
Viola × halacsyana Degen & Dörfl.	Unresolved		WCSP (in review)
Viola × hallieri Borbás	Unresolved		WCSP (in review)
Viola hamiltoniana D. Don	Accepted		TRO
Viola hancockii W. Becker	Accepted		TRO
Viola hancockii var. fangshanensis J.W. Wang	Synonym		TRO
Viola harae Miyabe & Tatew.	Unresolved		WCSP (in review)
Viola hastata Michx.	Unresolved		WCSP (in review)
Viola hastata var. glaberrima Ging.	Synonym		TRO
Viola hastata var. tripartita (Elliott) A. Gray	Unresolved		TRO
Viola hawaiiensis H.St.John	Unresolved		WCSP (in review)
Viola hebecarpa Schur	Unresolved		WCSP (in review)
Viola hebeiensis J.W. Wang & T.G. Ma	Synonym		TRO
Viola hederacea Labill.	Accepted		TRO
Viola hederacea subsp. cleistogamoides L.G.Adams	Unresolved		WCSP (in review)
Viola hederacea subsp. fuscoviolacea L.G.Adams	Unresolved		WCSP (in review)
Viola hediniana W. Becker	Accepted		TRO
Viola heldreichiana Boiss.	Unresolved		WCSP (in review)
Viola helena C.N.Forbes & Lydgate	Unresolved		WCSP (in review)
Viola helioscopia Hillebr.	Unresolved		WCSP (in review)
Viola helleriana W.Becker	Unresolved		WCSP (in review)
Viola × helvetica Brügger	Unresolved		WCSP (in review)
Viola hemsleyana Calderón	Accepted		TRO
Viola henryi H. Boissieu	Accepted		TRO
Viola henryi var. cameleo (H. Boissieu) Chang	Synonym		TRO
Viola herbivaga Ridl.	Unresolved		WCSP (in review)
Viola herminii Rothm.	Unresolved		WCSP (in review)
Viola herzogii Bornm.	Unresolved		TRO
Viola × heslopii Druce	Unresolved		WCSP (in review)
Viola × heterantha Caball.	Unresolved		WCSP (in review)
Viola heterophylla Pôll	Unresolved		WCSP (in review)
Viola heterophylla Muhl.	Unresolved		WCSP (in review)
Viola heterophylla Bertol.	Unresolved		WCSP (in review)
Viola heterophylla Poir.	Unresolved		WCSP (in review)
Viola heterosepala Boiss. & Heldr.	Unresolved		WCSP (in review)
Viola hichitoana Nakai	Unresolved		WCSP (in review)
Viola hidakana Nakai	Unresolved		WCSP (in review)
Viola hideoi Nakai	Unresolved		WCSP (in review)
Viola hieronymi W.Becker	Unresolved		WCSP (in review)
Viola hillii W. Becker	Accepted		TRO
Viola himalayensis W.Becker	Unresolved		WCSP (in review)
Viola hirsuta Crantz	Unresolved		WCSP (in review)
Viola hirsutula Brainerd	Unresolved		WCSP (in review)
Viola hirta L.	Synonym		TRO
Viola hirta subsp. brevifimbriata W. Beck	Synonym		TRO
Viola hirta var. calcarea Bab.	Unresolved		WCSP (in review)
Viola hirta subsp. calcarea (Bab.) E.F.Warb.	Unresolved		WCSP (in review)
Viola hirta var. collina (Besser) Regel	Synonym		TRO
Viola hirta var. japonica Maxim.	Synonym		TRO
Viola × hirtiformis Wiesb.	Unresolved		WCSP (in review)
Viola hirtipedoides W.Becker	Unresolved		WCSP (in review)
Viola hirtipes S. Moore	Accepted		TRO
Viola hirtoalba Gren. & Godr.	Unresolved		WCSP (in review)
Viola hispida Lapeyr.	Unresolved		WCSP (in review)
Viola hispida Lam.	Unresolved		WCSP (in review)
Viola hissarica Juz.	Unresolved		WCSP (in review)
Viola × hiyamae Maek.	Unresolved		WCSP (in review)
Viola hladnikii Rchb. ex Nyman	Unresolved		WCSP (in review)
Viola × hollickii House	Unresolved		WCSP (in review)
Viola × holmiana House	Unresolved		WCSP (in review)
Viola × holsatica E.H.L.Krause	Unresolved		WCSP (in review)
Viola holubyi Schur	Unresolved		WCSP (in review)
Viola hondoensis W. Becker & H. Boissieu	Accepted		TRO
Viola hookeri Thomson & W. Becker	Synonym		TRO
Viola hookeriana Kunth	Accepted		TRO
Viola hookeriana f. pubescentior W. Becker	Synonym		TRO
Viola hopeiensis J.W. Wang & T.G. Ma	Synonym		TRO
Viola hornemanniana Schult.	Unresolved		WCSP (in review)
Viola hortensis Rouy & Foucaud	Unresolved		WCSP (in review)
Viola hortensis Schur	Unresolved		WCSP (in review)
Viola × hortorum Thorsrud & Reisaeter	Unresolved		WCSP (in review)
Viola hosakae H.St.John	Unresolved		WCSP (in review)
Viola hosoii Nakai	Unresolved		WCSP (in review)
Viola hossei W. Becker	Synonym		TRO
Viola howellii A.Gray	Accepted		WCSP (in review)
Viola hsinganensis Taken.	Synonym		TRO
Viola huanucoensis W. Becker	Synonym		TRO
Viola huesoensis Martic.	Accepted		TRO
Viola huidobrii Gay	Accepted		TRO
Viola hultenii W.Becker	Unresolved		WCSP (in review)
Viola humboldtii Triana & Planch.	Synonym		TRO
Viola humifusa Vuk.	Unresolved		WCSP (in review)
Viola humilis Kunth	Accepted		TRO
Viola humillima Sennen	Unresolved		WCSP (in review)
Viola hunanensis Hand.-Mazz.	Synonym		TRO
Viola × hungarica Degen & Sabr.	Unresolved		WCSP (in review)
Viola hupeiana W. Becker	Synonym		TRO
Viola huronensis Greene	Unresolved		WCSP (in review)
Viola hybanthus Aubl.	Synonym		WCSP (in review)
Viola hybanthus L.	Synonym		TRO
Viola hybrida Wiesb.	Unresolved		WCSP (in review)
Viola hybrida Krock.	Unresolved		WCSP (in review)
Viola hybrida Wulfen ex Schult.	Unresolved		WCSP (in review)
Viola hybrida Schur	Unresolved		WCSP (in review)
Viola hydrocotyloides J.B.Armstr.	Unresolved		WCSP (in review)
Viola hymettia Boiss. & Heldr.	Accepted		WCSP (in review)
Viola × hyperborea (Rupr.) Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola hypoleuca Hayata	Synonym		TRO
Viola × hyrcanica Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola ibukiana Makino	Unresolved		WCSP (in review)
Viola idaea Gand.	Unresolved		WCSP (in review)
Viola ignobilis Rupr.	Unresolved		WCSP (in review)
Viola × igoschinae Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola ikedaeana W.Becker ex Taken.	Unresolved		WCSP (in review)
Viola illinoensis Greene	Unresolved		WCSP (in review)
Viola imberbis Ledeb.	Unresolved		WCSP (in review)
Viola impatiens H. Lév.	Synonym		TRO
Viola improcera L.G.Adams	Unresolved		WCSP (in review)
Viola improvisa Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola inamoena Greene	Unresolved		WCSP (in review)
Viola incisa Turcz.	Accepted		WCSP (in review)
Viola incisa var. acuminata Franch. & Sav.	Synonym		TRO
Viola × incissecta Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola incognita Brainerd	Accepted		WCSP (in review)
Viola incomparabilis Schur	Unresolved		WCSP (in review)
Viola incompta Jord.	Unresolved		WCSP (in review)
Viola inconspicua Blume	Accepted		TRO
Viola inconspicua subsp. dielsiana W. Becker	Synonym		TRO
Viola inconspicua subsp. nagasakiensis (W. Becker) J.C. Wang & T.C. Huang	Synonym		TRO
Viola indica W.Becker	Unresolved		WCSP (in review)
Viola indivisa Greene	Unresolved		WCSP (in review)
Viola induta Greene	Unresolved		WCSP (in review)
Viola ingrica M.Bieb. ex Rupr.	Unresolved		WCSP (in review)
Viola inodora Andrz.	Unresolved		WCSP (in review)
Viola inodora Gilib.	Unresolved		WCSP (in review)
Viola inornata Greene	Unresolved		WCSP (in review)
Viola × insessa House	Unresolved		WCSP (in review)
Viola × insidiosa Rouy & Foucaud	Unresolved		WCSP (in review)
Viola × insignis K.Richt.	Unresolved		WCSP (in review)
Viola insignis Pollard	Unresolved		WCSP (in review)
Viola × insolita House	Unresolved		WCSP (in review)
Viola insularis Nakai	Unresolved		WCSP (in review)
Viola insularis Gren. & Godr.	Unresolved		WCSP (in review)
Viola integerrima Phil.	Synonym		TRO
Viola integrifolius Dulac	Unresolved		WCSP (in review)
Viola interjecta Borbás	Unresolved		WCSP (in review)
Viola intermedia Lej.	Unresolved		WCSP (in review)
Viola intermedia Krock.	Unresolved		WCSP (in review)
Viola × interposita Kitag.	Synonym		TRO
Viola intertexta Beck	Unresolved		WCSP (in review)
Viola intricata Arv.-Touv.	Unresolved		WCSP (in review)
Viola ipecacuanha L.	Synonym		WCSP (in review)
Viola ircutiana Turcz.	Accepted		TRO
Viola irinae Zolot.	Unresolved		WCSP (in review)
Viola isaurica Contandr. & Quézel	Unresolved		WCSP (in review)
Viola × iselensis W.Becker	Unresolved		WCSP (in review)
Viola ishidoyana Nakai	Unresolved		WCSP (in review)
Viola isopetala Juz.	Synonym		TRO
Viola itoubou Aubl.	Synonym		TRO
Viola ivonis Erben	Unresolved		WCSP (in review)
Viola iwagawae Makino	Unresolved		WCSP (in review)
Viola × jaborneggii Khek ex Pacher	Unresolved		WCSP (in review)
Viola jaccardii W.Becker	Unresolved		WCSP (in review)
Viola jacquiniana Steud.	Unresolved		WCSP (in review)
Viola jagellonica Zapal.	Unresolved		WCSP (in review)
Viola jalapaensis W. Becker	Accepted		TRO
Viola jangiensis W.Becker	Unresolved		WCSP (in review)
Viola japonica Langsd. ex DC.	Accepted		TRO
Viola japonica var. stenopetala Franch. ex H. Boissieu	Synonym		TRO
Viola jaubertiana Marès & Vigin.	Unresolved		WCSP (in review)
Viola javanica W.Becker	Unresolved		WCSP (in review)
Viola jeniseensis Zuev	Unresolved		WCSP (in review)
Viola × jettmarii Hand.-Mazz.	Synonym		TRO
Viola jizushanensis S.H. Huang	Synonym		TRO
Viola × joannis-wagneri Kárpáti	Unresolved		WCSP (in review)
Viola joergensenii W. Becker	Accepted		TRO
Viola johnstonii Becker	Accepted		TRO
Viola jooi Janka	Unresolved		WCSP (in review)
Viola jordanii Hanry	Accepted		TRO
Viola jordanii var. falconeri (Hook. f. & Thomson) W. Becker	Accepted		TRO
Viola jucunda Jord.	Unresolved		WCSP (in review)
Viola jugalis Ridl.	Unresolved		WCSP (in review)
Viola × juliae Brügger	Unresolved		WCSP (in review)
Viola juressii Link ex Cout.	Unresolved		WCSP (in review)
Viola juressii Link ex Steud.	Unresolved		WCSP (in review)
Viola × juzepczukii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola kalbreyeri W.Becker	Unresolved		WCSP (in review)
Viola × kalksburgensis Wiesb.	Unresolved		WCSP (in review)
Viola kamibayashii Nakai	Unresolved		WCSP (in review)
Viola kamtschadalorum W. Becker & Hult.	Synonym		TRO
Viola kamtschatica Ging.	Unresolved		WCSP (in review)
Viola kamtschatica var. pekinensis Regel	Synonym		TRO
Viola kanoi Sasaki	Synonym		TRO
Viola kansuensis W. Becker	Synonym		TRO
Viola kansuensis var. oblonga W. Becker	Synonym		TRO
Viola kapsanensis Nakai	Unresolved		WCSP (in review)
Viola karakalensis Klokov	Unresolved		WCSP (in review)
Viola × karakulensis Vl.V.Nikitin & O.Baranova	Unresolved		WCSP (in review)
Viola karlreicheana Sanso, M.Seo & Xifreda	Unresolved		WCSP (in review)
Viola kashmiriana W.Becker	Unresolved		WCSP (in review)
Viola kauaaensis A.Gray	Unresolved		WCSP (in review)
Viola kauensis A.Gray	Unresolved		WCSP (in review)
Viola kawakamii Hayata	Synonym		TRO
Viola kawakamii var. stenopetala Hayata	Synonym		TRO
Viola keiskei Miq.	Unresolved		WCSP (in review)
Viola keiskei f. hirsutior W. Becker	Synonym		TRO
Viola kelleri W.Becker	Unresolved		WCSP (in review)
Viola kelloggii A. Nelson	Synonym		TRO
Viola kermesina W. Becker	Accepted		TRO
Viola × kerneri Wiesb.	Unresolved		WCSP (in review)
Viola kiangsiensis W. Becker	Synonym		TRO
Viola kiliensis Prahl	Unresolved		WCSP (in review)
Viola kishidae Nakai	Unresolved		WCSP (in review)
Viola kisoana Nakai	Unresolved		WCSP (in review)
Viola kitaibeliana Schult.	Accepted		WCSP (in review)
Viola kitaibeliana var. rafinesquei (Greene) Fernald	Synonym		TRO
Viola kitamiana Nakai	Unresolved		WCSP (in review)
Viola kiusiana Makino	Synonym		TRO
Viola kizildaghensis Dinç & Yild.	Unresolved		WCSP (in review)
Viola kjellhergii Melch.	Unresolved		WCSP (in review)
Viola × klopotovii W.Becker	Unresolved		WCSP (in review)
Viola klossii Ridl.	Unresolved		WCSP (in review)
Viola kochii Kirschl.	Unresolved		WCSP (in review)
Viola × koehleri W.Becker	Unresolved		WCSP (in review)
Viola kohalana (Rock) H.St.John	Unresolved		WCSP (in review)
Viola komarovii W. Becker	Synonym		TRO
Viola korahinskyi Juz.	Unresolved		WCSP (in review)
Viola koraiensis Nakai	Synonym		TRO
Viola korinchensis Ridl.	Unresolved		WCSP (in review)
Viola koritnicensis Trinajstic	Unresolved		WCSP (in review)
Viola kosanensis Hayata	Accepted		TRO
Viola kosaninii Hayek	Unresolved		WCSP (in review)
Viola kosaninii Degen	Unresolved		WCSP (in review)
Viola kotschyana W.Becker	Unresolved		WCSP (in review)
Viola kozo-poljanskii Grosset	Unresolved		WCSP (in review)
Viola × krascheninnikoviorum Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola krokeri J.F.Gmel.	Unresolved		WCSP (in review)
Viola kronenburgii W.Becker	Unresolved		WCSP (in review)
Viola krugiana W.Becker	Unresolved		WCSP (in review)
Viola kunawarensis var. angustifolia W. Becker	Synonym		TRO
Viola kunawarensis f. longifolia Ching J. Wang	Synonym		TRO
Viola kunawurensis Royle	Accepted		TRO
Viola kupcokiana W.Becker	Unresolved		WCSP (in review)
Viola kupfferiana W.Becker	Unresolved		WCSP (in review)
Viola kupffieri Klokov	Unresolved		WCSP (in review)
Viola kurilensis Nakai	Unresolved		WCSP (in review)
Viola kusanoana Makino	Accepted		TRO
Viola kusnezowiana W.Becker	Unresolved		WCSP (in review)
Viola kutzingiana Rouy & Foucaud	Unresolved		WCSP (in review)
Viola kwangtungensis Melch.	Accepted		TRO
Viola labiosa Sm.	Unresolved		WCSP (in review)
Viola labradorica Schrank	Accepted		TRO
Viola lacaitaeana W.Becker	Unresolved		WCSP (in review)
Viola laciniata (Boissieu) Koidz.	Unresolved		WCSP (in review)
Viola laciniosa A.Gray	Unresolved		WCSP (in review)
Viola × lacmonica Hausskn.	Unresolved		WCSP (in review)
Viola lactea Hegetschw.	Unresolved		WCSP (in review)
Viola lactea Sm.	Unresolved		WCSP (in review)
Viola lactea W.D.J.Koch & Ziz	Unresolved		WCSP (in review)
Viola lactea Rchb.	Unresolved		WCSP (in review)
Viola lactiflora Nakai	Accepted		TRO
Viola laetecaerulea Greene	Unresolved		WCSP (in review)
Viola lagaipensis D.M.Moore	Unresolved		WCSP (in review)
Viola lainzii P.Monts.	Unresolved		WCSP (in review)
Viola lamiifolia Pritz.	Unresolved		WCSP (in review)
Viola lanaiensis W.Becker	Unresolved		WCSP (in review)
Viola lancea Poir.	Unresolved		WCSP (in review)
Viola lanceifolia Schumach. & Thonn.	Unresolved		WCSP (in review)
Viola lanceolata L.	Accepted		WCSP (in review)
Viola lanceolata subsp. occidentalis (A. Gray) N. Russell	Synonym		TRO
Viola lanceolata subsp. vittata (Greene) N. Russell	Accepted		TRO
Viola lanceolata var. vittata (Greene) Weath. & Griscom	Synonym		TRO
Viola lancifolia M.Bieb.	Unresolved		WCSP (in review)
Viola lancifolia Besser	Unresolved		WCSP (in review)
Viola lancifolia Thore	Unresolved		WCSP (in review)
Viola × lanciformis Rouy & Foucaud	Unresolved		WCSP (in review)
Viola langeana Valentine	Unresolved		WCSP (in review)
Viola langloisii Greene	Synonym		TRO
Viola langsdorffii Fisch. ex Ging.	Accepted		TRO
Viola lanifera Becker	Accepted		TRO
Viola lapeyrousiana (Rouy & Foucaud) A.W.Hill	Unresolved		WCSP (in review)
Viola largsdorflii Fisch. ex Ging.	Unresolved		WCSP (in review)
Viola laricicola Marcussen	Unresolved		WCSP (in review)
Viola lasiostipes Nakai	Synonym		TRO
Viola latifolia Drabble	Unresolved		WCSP (in review)
Viola latisepala Wettst.	Unresolved		WCSP (in review)
Viola latistipula Hemsl.	Unresolved		WCSP (in review)
Viola latiuscula Greene	Synonym		TRO
Viola laurifolia Sm.	Unresolved		WCSP (in review)
Viola lauzuricae Marcet	Unresolved		WCSP (in review)
Viola lavandulacea E.P.Bicknell	Unresolved		WCSP (in review)
Viola lavrenkoana Klokov	Accepted		TRO
Viola lechleri Griseb.	Unresolved		WCSP (in review)
Viola lecomteana W.Becker ex Gagnep.	Unresolved		WCSP (in review)
Viola leconteana G.Don	Unresolved		WCSP (in review)
Viola lehmannii W. Becker	Accepted		TRO
Viola lehmannii W. Becker ex H.E. Ballard & P. Jørg.	Unresolved		TRO
Viola lehmannii subsp. cordifolia W. Becker	Synonym		TRO
Viola lehmannii subsp. ovalifolia W. Becker	Synonym		TRO
Viola lejeunii Jord.	Unresolved		WCSP (in review)
Viola lepida Jord.	Unresolved		WCSP (in review)
Viola leptoceras Schur	Unresolved		WCSP (in review)
Viola leptosepala Greene	Synonym		TRO
Viola leptostolona Pôll	Unresolved		WCSP (in review)
Viola lesbiaca Candargy	Unresolved		WCSP (in review)
Viola leucantha Schur	Unresolved		WCSP (in review)
Viola leucocentra Pinkw.	Unresolved		WCSP (in review)
Viola leucoceras Borbás ex Murr	Unresolved		WCSP (in review)
Viola leucopetala Murr & Pôll	Unresolved		WCSP (in review)
Viola leunisii Borbás	Unresolved		WCSP (in review)
Viola leveillei H. Boissieu	Synonym		TRO
Viola levieri Parl. ex Caruel	Unresolved		WCSP (in review)
Viola lewisiana Ging.	Unresolved		WCSP (in review)
Viola leyboldiana Phil.	Accepted		TRO
Viola lianhuashanensis Ching J. Wang & K. Sun	Synonym		TRO
Viola liaosiensis P.Y. Fu & Y.C. Teng	Synonym		TRO
Viola libanotica Boiss.	Unresolved		WCSP (in review)
Viola ligustina Dalla Torre & Sarnth.	Unresolved		WCSP (in review)
Viola × lii Kitag.	Synonym		TRO
Viola lilascens Heldr. ex Boiss.	Unresolved		WCSP (in review)
Viola lilloana W.Becker	Unresolved		WCSP (in review)
Viola limbarae (Merxm. & W.Lippert) Arrigoni	Unresolved		WCSP (in review)
Viola limprichtiana W. Becker	Synonym		TRO
Viola lindeniana Turcz.	Synonym		TRO
Viola linearifolia Vahl	Synonym		TRO
Viola lineata Ortega	Unresolved		WCSP (in review)
Viola linguifolia Nutt.	Synonym		TRO
Viola linifolia Poir.	Synonym		TRO
Viola lithion N.H.Holmgren & P.K.Holmgren	Unresolved		WCSP (in review)
Viola litoralis Phil.	Synonym		TRO
Viola littoralis Thouars	Synonym		TRO
Viola livida Kit. ex Schult.	Unresolved		WCSP (in review)
Viola livonica Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola lloydii Jord. ex Boreau	Unresolved		WCSP (in review)
Viola llullaillacoensis W. Becker	Accepted		TRO
Viola lobata Benth.	Unresolved		WCSP (in review)
Viola lobata var. integrifolia S. Watson	Synonym		TRO
Viola lobata subsp. integrifolia (S. Watson) R.J. Little	Unresolved		TRO
Viola lobata subsp. psychodes (Greene) Munz	Synonym		TRO
Viola lobata var. psychodes (Greene) J.T. Howell	Unresolved		TRO
Viola loefflingiana Steud.	Unresolved		WCSP (in review)
Viola longicaulis Krock.	Unresolved		WCSP (in review)
Viola longifolia Lázaro Iberia	Unresolved		WCSP (in review)
Viola longifolia R.Br. ex Ging.	Unresolved		WCSP (in review)
Viola longifolia Poir.	Unresolved		WCSP (in review)
Viola longipedunculata Franch. & Sav.	Unresolved		WCSP (in review)
Viola longipes Nutt.	Synonym		TRO
Viola longiscapa DC. ex G.Don	Unresolved		WCSP (in review)
Viola longistipulata Hayata	Synonym		TRO
Viola longiviola Pourr. ex Schult.	Unresolved		WCSP (in review)
Viola losae Pau	Unresolved		WCSP (in review)
Viola lovelliana Brainerd	Synonym		TRO
Viola lucens W. Becker	Accepted		TRO
Viola × luciae Skottsb.	Unresolved		WCSP (in review)
Viola lucida Nakai	Unresolved		WCSP (in review)
Viola lucidifolia Newbro	Unresolved		WCSP (in review)
Viola lucorum Dalla Torre & Sarnth.	Unresolved		WCSP (in review)
Viola lucorum Lange	Unresolved		WCSP (in review)
Viola ludovicea Jan ex Ging.	Unresolved		WCSP (in review)
Viola × luganensis W.Becker	Unresolved		WCSP (in review)
Viola lunaria Garsault [Invalid]	Synonym		WCSP (in review)
Viola lunata Ridl.	Unresolved		WCSP (in review)
Viola lunellii Greene	Unresolved		WCSP (in review)
Viola lusitana Brot.	Unresolved		WCSP (in review)
Viola lutchuensis Nakai	Unresolved		WCSP (in review)
Viola lutea Huds.	Synonym		TRO
Viola luteola Jord.	Unresolved		WCSP (in review)
Viola lyallii Hook.f.	Unresolved		WCSP (in review)
Viola macedonica Boiss. & Heldr.	Unresolved		WCSP (in review)
Viola macloskeyi F.E. Lloyd	Accepted		TRO
Viola macloskeyi var. macloskeyi	Accepted		TRO
Viola macloskeyi subsp. pallens (Banks ex DC.) M.S. Baker	Unresolved		TRO
Viola macloviana Gand.	Unresolved		WCSP (in review)
Viola macounii Greene	Unresolved		WCSP (in review)
Viola macroceras Bunge	Accepted		TRO
Viola macrostipulata Schur	Unresolved		WCSP (in review)
Viola macrotis Greene	Synonym		TRO
Viola maculata Cav.	Accepted		WCSP (in review)
Viola maculata var. megaphylla DC. ex Ging.	Synonym		WCSP (in review)
Viola maculata subsp. microphyllos (Poir.) Weibel	Synonym		WCSP (in review)
Viola maculata var. microphyllos (Poir.) DC. ex Ging.	Accepted		WCSP (in review)
Viola maculicola Koidz.	Unresolved		WCSP (in review)
Viola maderensis Lowe	Unresolved		WCSP (in review)
Viola madonia C.Presl ex Rchb.	Unresolved		WCSP (in review)
Viola magellanica Poir.	Accepted		TRO
Viola magellensis Porta & Rigo ex Strobl	Unresolved		WCSP (in review)
Viola magnifica Ching J. Wang ex X.D. Wang	Accepted		TRO
Viola magniflora Molina	Unresolved		WCSP (in review)
Viola maillardii Souché	Unresolved		WCSP (in review)
Viola mainlingensis S.Yung Chen	Synonym		TRO
Viola mairei H. Lév.	Synonym		TRO
Viola majchurensis Pissjauk.	Unresolved		WCSP (in review)
Viola makinoi H.Boissieu	Unresolved		WCSP (in review)
Viola makranica Omer & Qaiser	Unresolved		WCSP (in review)
Viola malteana House	Unresolved		WCSP (in review)
Viola × maluqueri Sennen	Unresolved		WCSP (in review)
Viola × malvesinii Jeanj.	Unresolved		WCSP (in review)
Viola malvina Ridl.	Unresolved		WCSP (in review)
Viola mamillata Greene	Synonym		TRO
Viola manaslensis F. Maek.	Synonym		TRO
Viola mandonii W.Becker	Unresolved		WCSP (in review)
Viola mandshurica W. Becker	Accepted		TRO
Viola mandshurica f. albiflora P.Y. Fu & Y.C. Teng	Synonym		TRO
Viola mandshurica var. ciliata Nakai	Synonym		TRO
Viola mandshurica f. ciliata (Nakai) F. Maek.	Synonym		TRO
Viola mandshurica var. glabra Nakai	Synonym		TRO
Viola mandshurica f. glabra (Nakai) Hiyama ex Maek.	Synonym		TRO
Viola mandshurica f. macrantha (Maxim.) Nakai & Kitag.	Synonym		TRO
Viola mandshurica subsp. nagasakiensis W. Becker	Synonym		TRO
Viola mantziana W.Becker	Unresolved		WCSP (in review)
Viola maoershanensis Y.S. Chen & Q. E. Yang	Unresolved		TRO
Viola marcetii W.Becker	Unresolved		WCSP (in review)
Viola mariae W. Becker	Synonym		TRO
Viola × marihelenae Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola maritima Spreng. ex Mert. & W.D.J.Koch	Unresolved		WCSP (in review)
Viola maritima (Schweigg. ex J.C.Clausen) Tzvelev	Unresolved		WCSP (in review)
Viola × markensteinensis Wiesb.	Unresolved		WCSP (in review)
Viola × markgrafii W.Becker	Unresolved		WCSP (in review)
Viola maroccana Maire	Unresolved		WCSP (in review)
Viola martia Garsault [Invalid]	Unresolved		WCSP (in review)
Viola × martini Maek.	Unresolved		WCSP (in review)
Viola × marylandica House	Unresolved		WCSP (in review)
Viola masenderana Freyn ex W.Becker	Unresolved		WCSP (in review)
Viola massonii Banks ex Ging.	Unresolved		WCSP (in review)
Viola × matczkasensis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola matronalis Garsault [Invalid]	Synonym		WCSP (in review)
Viola matsudae Hayata	Synonym		TRO
Viola matsumurae Makino	Unresolved		WCSP (in review)
Viola matutina Klokov	Accepted		TRO
Viola mauritii Tepl.	Accepted		WCSP (in review)
Viola maviensis H.Mann	Unresolved		WCSP (in review)
Viola × maxima Domin	Unresolved		WCSP (in review)
Viola maximowicziana Makino	Unresolved		WCSP (in review)
Viola maymanica Grey-Wilson	Unresolved		WCSP (in review)
Viola mccabeiana M.S.Baker	Unresolved		WCSP (in review)
Viola mearnsii Merr.	Unresolved		WCSP (in review)
Viola mearnsii Standl.	Unresolved		WCSP (in review)
Viola × medelii W.Becker	Unresolved		WCSP (in review)
Viola media Chaillet ex Schult.	Unresolved		WCSP (in review)
Viola medlingensis Wiesb.	Unresolved		WCSP (in review)
Viola meduanensis Boreau	Unresolved		WCSP (in review)
Viola × megapolitana Prahl	Unresolved		WCSP (in review)
Viola melanosperma Bertero ex Ging.	Unresolved		WCSP (in review)
Viola melissifolia Greene	Unresolved		WCSP (in review)
Viola membranacea W. Becker	Accepted		TRO
Viola mendanca Vell.	Unresolved		WCSP (in review)
Viola × menitzkii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola mentita Jord.	Unresolved		WCSP (in review)
Viola mercurii Orph. ex Halácsy	Unresolved		WCSP (in review)
Viola × merkensteiniensis Wiesb. ex Murr	Unresolved		WCSP (in review)
Viola merrilliana W.Becker	Unresolved		WCSP (in review)
Viola merxmuelleri Erben	Unresolved		WCSP (in review)
Viola mesadensis W.Becker	Unresolved		WCSP (in review)
Viola mesochora Greene ex Rosend.	Unresolved		WCSP (in review)
Viola metajaponica Nakai	Unresolved		WCSP (in review)
Viola methodiana Const. & Gand.	Unresolved		WCSP (in review)
Viola metziana Hohen. ex Hook.f.	Unresolved		WCSP (in review)
Viola meyeriana (Rupr.) Klokov	Unresolved		WCSP (in review)
Viola micrantha Turcz.	Synonym		TRO
Viola micranthella Wedd.	Accepted		TRO
Viola microcentra W.Becker	Unresolved		WCSP (in review)
Viola microdonta Chang	Synonym		TRO
Viola microphylla Phil.	Synonym		TRO
Viola microphylla Willd. ex Roem. & Schult.	Synonym		TRO
Viola microphyllos Poir.	Synonym		WCSP (in review)
Viola × mielnicensis Zapal.	Unresolved		WCSP (in review)
Viola miersii Bertero ex Steud.	Unresolved		WCSP (in review)
Viola milanae Vl.V.Nikitin	Accepted		WCSP (in review)
Viola × milleri Moldenke	Unresolved		WCSP (in review)
Viola minae Strobl	Unresolved		WCSP (in review)
Viola minima M.S.Baker	Unresolved		WCSP (in review)
Viola minor (Makino) Makino	Synonym		TRO
Viola minor var. ciliata Taken.	Unresolved		WCSP (in review)
Viola minor f. pilosa F.Maek.	Unresolved		WCSP (in review)
Viola minuscula Greene	Unresolved		WCSP (in review)
Viola minuta M.Bieb.	Unresolved		WCSP (in review)
Viola minutiflora Phil.	Accepted		TRO
Viola × mira Zapal.	Unresolved		WCSP (in review)
Viola mirabiliformis Murr & Pôll	Unresolved		WCSP (in review)
Viola mirabilis L.	Accepted		TRO
Viola mirabilis var. brachysepala (Maxim.) Regel	Synonym		TRO
Viola mirabilis var. brevicalcarata Nakai	Synonym		TRO
Viola mirabilis var. glaberrima W. Becker	Synonym		TRO
Viola mirabilis f. latisepala W. Becker	Synonym		TRO
Viola mirabilis var. platysepala Kitag.	Synonym		TRO
Viola mirabilis var. subglabra Ledeb.	Synonym		TRO
Viola miranda W. Becker	Synonym		TRO
Viola missouriensis Greene	Synonym		TRO
Viola mistassinica Greene	Unresolved		WCSP (in review)
Viola × mistura House	Unresolved		WCSP (in review)
Viola × mixta Sudre	Unresolved		WCSP (in review)
Viola mixta A.Kern.	Unresolved		WCSP (in review)
Viola miyabei Makino	Unresolved		WCSP (in review)
Viola miyajiana Koidz.	Unresolved		WCSP (in review)
Viola miyakei Nakai	Unresolved		WCSP (in review)
Viola modesta Ball	Unresolved		WCSP (in review)
Viola × modesta House	Unresolved		WCSP (in review)
Viola modesta Fenzl	Unresolved		WCSP (in review)
Viola modestula Klokov	Synonym		TRO
Viola × modica House	Unresolved		WCSP (in review)
Viola molfinoana W.Becker	Unresolved		WCSP (in review)
Viola molleri Wein	Unresolved		WCSP (in review)
Viola × mollicula House	Unresolved		WCSP (in review)
Viola × mollis A.Kern. ex Wiesb.	Unresolved		WCSP (in review)
Viola monbeigii W. Becker	Synonym		TRO
Viola moncaunica Pau	Unresolved		WCSP (in review)
Viola mongolica Franch.	Accepted		TRO
Viola mongolica f. longisepala P.Y. Fu & Y.C. Teng	Synonym		TRO
Viola monochroa Klokov	Synonym		TRO
Viola monopetala Schult.	Unresolved		WCSP (in review)
Viola montagnei Gay	Unresolved		WCSP (in review)
Viola montana L.	Accepted		TRO
Viola montana var. elatior (Fr.) Regel	Synonym		TRO
Viola montanensis Rydb.	Synonym		TRO
Viola montfortensis Murr & Pôll	Unresolved		WCSP (in review)
Viola monticola Jord.	Unresolved		WCSP (in review)
Viola monticola Rydb.	Unresolved		WCSP (in review)
Viola × montivaga House	Unresolved		WCSP (in review)
Viola moupinensis Franch.	Accepted		TRO
Viola moupinensis var. lijiangensis Ching J. Wang	Synonym		TRO
Viola mrkvickana Velen.	Unresolved		WCSP (in review)
Viola mucronulifera Hand.-Mazz.	Accepted		TRO
Viola mucuzii Orph. ex Nyman	Unresolved		WCSP (in review)
Viola mudfordae Pollard	Unresolved		WCSP (in review)
Viola muehldorfii Kiss	Accepted		TRO
Viola muhlenbergiana Ging.	Unresolved		WCSP (in review)
Viola muhlenbergiana var. minor Hook.	Synonym		TRO
Viola muhlenbergii Torr.	Unresolved		WCSP (in review)
Viola muhlenbergii var. multicaulis Torr. & A. Gray	Synonym		TRO
Viola × mulfordae Pollard	Unresolved		WCSP (in review)
Viola muliensis Y.S. Chen & Q.E.Yang	Accepted		TRO
Viola multicaulis Jord.	Unresolved		WCSP (in review)
Viola multicaulis Britton	Unresolved		WCSP (in review)
Viola multifida Makino	Unresolved		WCSP (in review)
Viola multifida Mill.	Unresolved		WCSP (in review)
Viola multifida Willd. ex Schult.	Unresolved		WCSP (in review)
Viola multistolonifera Ching J. Wang	Synonym		TRO
Viola munbyana Boiss. & Reut.	Accepted		WCSP (in review)
Viola munozensis W.Becker	Unresolved		WCSP (in review)
Viola × murbeckii Dörfl.	Unresolved		WCSP (in review)
Viola muretii F.O.Wolf	Unresolved		WCSP (in review)
Viola muriculata Greene	Synonym		TRO
Viola murrii Pôll	Unresolved		WCSP (in review)
Viola muscoides Phil.	Synonym		TRO
Viola mutabilis Rochel	Unresolved		WCSP (in review)
Viola mutsuensis W.Becker	Unresolved		WCSP (in review)
Viola mysurensis B.Heyne ex Wall.	Unresolved		WCSP (in review)
Viola nagamiana T. Hashim.	Synonym		TRO
Viola nagasawae Makino & Hayata	Accepted		TRO
Viola nagasawae var. nagasawae	Accepted		TRO
Viola nagasawai var. acutilabella (Hayata) Nakai	Synonym		TRO
Viola nagasawai var. pricei (W. Becker) J.C. Wang & T.C. Huang	Unresolved		TRO
Viola × najadum Wein	Unresolved		WCSP (in review)
Viola nana Godr.	Unresolved		WCSP (in review)
Viola nanlingensis J.S. Zhou & F.W.Xing	Accepted		TRO
Viola nannei Pol.	Accepted		TRO
Viola nannei var. glaberrima Becker	Synonym		TRO
Viola nantouensis S.S. Ying	Synonym		TRO
Viola × napae House	Unresolved		WCSP (in review)
Viola napellifolia Nakai	Synonym		TRO
Viola napellifolia var. sieboldiana (Maxim.) Nakai	Synonym		TRO
Viola nassauvioides Phil.	Accepted		TRO
Viola × nataliae Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola nebrodensis C.Presl	Unresolved		WCSP (in review)
Viola neglecta M.Bieb.	Unresolved		WCSP (in review)
Viola neglecta F.W.Schmidt	Unresolved		WCSP (in review)
Viola × neglectiformis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola negulosa Greene	Unresolved		WCSP (in review)
Viola × neilreichiana Borbás	Unresolved		WCSP (in review)
Viola × neilreichii K.Richt.	Unresolved		WCSP (in review)
Viola nelsonii W.Becker	Synonym		WCSP (in review)
Viola nemausensis Jord.	Unresolved		WCSP (in review)
Viola × nemenyiana J.Wagner	Unresolved		WCSP (in review)
Viola nemoralis Kütz.	Accepted		WCSP (in review)
Viola nemoralis subsp. abbreviata (Vl.V.Nikitin) Vl.V.Nikitin	Synonym		WCSP (in review)
Viola nemoralis var. abbreviata Vl.V.Nikitin	Accepted		WCSP (in review)
Viola nemorum Rouy & Foucaud	Unresolved		WCSP (in review)
Viola neoburgensis Erdner	Unresolved		WCSP (in review)
Viola neomexicana Greene	Synonym		TRO
Viola nepaulensis DC. ex D.Don	Unresolved		WCSP (in review)
Viola nepetifolia Greene	Unresolved		WCSP (in review)
Viola nephrophylla Greene	Accepted		TRO
Viola nephrophylla var. arizonica (Greene) Kearney & Peebles	Synonym		TRO
Viola nephrophylla var. cognata (Greene) C.L. Hitchc.	Synonym		TRO
Viola × nephrophylloides Farw.	Unresolved		WCSP (in review)
Viola nesiotica Greene	Unresolved		WCSP (in review)
Viola × neumanniana Borbás	Unresolved		WCSP (in review)
Viola nevadensis Boiss.	Unresolved		WCSP (in review)
Viola nicolai Pant.	Unresolved		WCSP (in review)
Viola niederleinii W.Becker	Unresolved		WCSP (in review)
Viola nigricans Schur ex Nyman	Unresolved		WCSP (in review)
Viola niijimensis Nakai	Unresolved		WCSP (in review)
Viola nikkoensis Nakai	Unresolved		WCSP (in review)
Viola nilagirica Turcz.	Unresolved		WCSP (in review)
Viola nipponica Makino	Unresolved		WCSP (in review)
Viola nitens Host ex Rchb.	Unresolved		WCSP (in review)
Viola nivalis Benth.	Synonym		TRO
Viola nivalis Phil.	Synonym		TRO
Viola nobilis W. Becker	Accepted		TRO
Viola nodosa Greene	Unresolved		WCSP (in review)
Viola notabilis E.P.Bicknell	Unresolved		WCSP (in review)
Viola notoniana Wall.	Unresolved		WCSP (in review)
Viola novae-angliae House	Synonym		TRO
Viola novae-angliae subsp. grisea (Fernald) Gil-ad	Unresolved		TRO
Viola nubica Hutch. ex Broun & Massey	Unresolved		WCSP (in review)
Viola nubigena Leyb.	Accepted		TRO
Viola nuda W. Becker	Accepted		TRO
Viola nudicaulis (W. Becker) S.Y. Chen	Synonym		TRO
Viola nuevo-leonensis W.Becker	Unresolved		WCSP (in review)
Viola nummularia Vuk.	Unresolved		WCSP (in review)
Viola nummularifolia All.	Unresolved		WCSP (in review)
Viola nummularifolia F.W.Schmidt	Unresolved		WCSP (in review)
Viola nummulariifolia Vill.	Unresolved		WCSP (in review)
Viola nuttallii Pursh	Synonym		TRO
Viola nuttallii var. bakeri (Greene) C.L. Hitchc.	Synonym		TRO
Viola nuttallii var. linguifolia (Nutt.) Jeps.	Synonym		TRO
Viola nuttallii var. linguifolia (Nutt.) Piper	Synonym		TRO
Viola nuttallii var. major Hook.	Synonym		TRO
Viola nuttallii var. praemorsa (Douglas ex Lindl.) S. Watson	Synonym		TRO
Viola nuttallii subsp. praemorsa (Douglas ex Lindl.) Piper	Synonym		TRO
Viola nuttallii var. vallicola (A. Nelson) H. St. John	Synonym		TRO
Viola nuttallii subsp. vallicola (A. Nelson) Roy L. Taylor & MacBryde	Synonym		TRO
Viola nuttallii var. venosa S.Watson	Synonym		WCSP (in review)
Viola obliqua Hill	Synonym		TRO
Viola obliqua var. crenulata (Greene) Farw.	Unresolved		TRO
Viola obliquifolia Turcz.	Synonym		WCSP (in review)
Viola oblonga Blatt.	Unresolved		WCSP (in review)
Viola oblongosagittata Nakai	Synonym		TRO
Viola oblongosagittata f. ishizakii Yamam.	Synonym		TRO
Viola oblongosagittata var. violascens Nakai	Synonym		TRO
Viola obscura Schur	Unresolved		WCSP (in review)
Viola obtusa (Makino) Makino	Accepted		TRO
Viola × obtusoacuminata T.Hashim. ex T.Shimizu	Unresolved		WCSP (in review)
Viola obtusogrypoceras Makino	Unresolved		WCSP (in review)
Viola obtusosagitta Koidz.	Unresolved		WCSP (in review)
Viola occidentalis (A. Gray) Howell	Synonym		TRO
Viola occulta Lehm.	Accepted		TRO
Viola ocellata Torr. & A.Gray	Unresolved		WCSP (in review)
Viola ochroleuca Schwein.	Unresolved		WCSP (in review)
Viola oconensis House	Unresolved		WCSP (in review)
Viola odontocalycina Boiss.	Unresolved		WCSP (in review)
Viola odontophora Rydb.	Synonym		TRO
Viola odora Neck.	Unresolved		WCSP (in review)
Viola odorata L.	Accepted		WCSP (in review)
Viola × oenensis Borbás	Unresolved		WCSP (in review)
Viola oenipontana Murr	Unresolved		WCSP (in review)
Viola × oenipontana Murr	Unresolved		WCSP (in review)
Viola oetolica Boiss.	Unresolved		WCSP (in review)
Viola officinalis Crantz	Unresolved		WCSP (in review)
Viola × ogawae Nakai	Unresolved		WCSP (in review)
Viola okuboi Makino	Unresolved		WCSP (in review)
Viola × okuharae F.Maek. ex T.Shimizu	Unresolved		WCSP (in review)
Viola oldhamiana Nakai	Unresolved		WCSP (in review)
Viola oligoceps Chang	Synonym		TRO
Viola olimpia Beggiat.	Unresolved		WCSP (in review)
Viola olonnensis Genev.	Unresolved		WCSP (in review)
Viola olympica Boiss.	Unresolved		WCSP (in review)
Viola olympica var. samothracica Degen	Unresolved		WCSP (in review)
Viola olyssiponensis Rouy	Unresolved		WCSP (in review)
Viola ophiophila Greene	Unresolved		WCSP (in review)
Viola ophiophylla Greene	Unresolved		TRO
Viola opizii Knaf ex Nyman	Unresolved		WCSP (in review)
Viola oppositifolia L.	Synonym		WCSP (in review)
Viola orbelica Pancic	Unresolved		WCSP (in review)
Viola orbiculata Geyer ex Holz.	Synonym		TRO
Viola orbignyana Remy	Unresolved		WCSP (in review)
Viola orcadensis Drabble	Unresolved		WCSP (in review)
Viola orchidiflora Rudge	Synonym		TRO
Viola oreades M.Bieb.	Unresolved		WCSP (in review)
Viola oreliensis W.Becker	Unresolved		WCSP (in review)
Viola oreocallis Greene	Unresolved		WCSP (in review)
Viola oreophila Greene	Unresolved		WCSP (in review)
Viola orientalis W.Becker	Accepted		WCSP (in review)
Viola orientalis var. conferta W. Becker	Synonym		TRO
Viola ornithodes Greene	Unresolved		WCSP (in review)
Viola ornmuelleri x hymettia	Unresolved		TRO
Viola orophila Wiesb.	Unresolved		WCSP (in review)
Viola orphanidis Boiss.	Unresolved		WCSP (in review)
Viola orthoceras Ledeb.	Unresolved		WCSP (in review)
Viola oudemansii W.Becker	Unresolved		WCSP (in review)
Viola ovalifolia W.Becker	Unresolved		WCSP (in review)
Viola ovalleana Phil.	Accepted		TRO
Viola ovata Nutt.	Synonym		TRO
Viola ovata var. hicksii (Pollard) Pollard	Unresolved		TRO
Viola ovato-oblonga Makino	Unresolved		WCSP (in review)
Viola ovato-oblonga var. obtusa Makino	Synonym		TRO
Viola oxycentra Juz.	Synonym		TRO
Viola oxyceras (S. Watson) Greene	Synonym		TRO
Viola oxyodontis Ballard	Accepted		TRO
Viola oxysepala Greene	Synonym		TRO
Viola × pacheri Wiesb.	Unresolved		WCSP (in review)
Viola pachyrhiza Franch.	Unresolved		WCSP (in review)
Viola pachyrhizonia F.O.Wolf	Unresolved		WCSP (in review)
Viola pachyrrhiza Boiss. & Hohen.	Unresolved		WCSP (in review)
Viola pacifica Juz.	Unresolved		WCSP (in review)
Viola paillouxi Jord.	Unresolved		WCSP (in review)
Viola painteri Rose & House	Accepted		TRO
Viola palatina Y.N.Lee	Unresolved		WCSP (in review)
Viola palentina Losa	Unresolved		WCSP (in review)
Viola pallascaensis W. Becker	Accepted		TRO
Viola pallasii Fisch. ex Steud.	Unresolved		WCSP (in review)
Viola pallens (Banks ex DC.) Brainerd	Unresolved		TRO
Viola pallens subsp. macloskeyi (F.E. Lloyd) M.S. Baker	Synonym		TRO
Viola pallescens Jord.	Unresolved		WCSP (in review)
Viola pallida Salisb.	Unresolved		WCSP (in review)
Viola pallidiflora A.Huet ex Nyman	Unresolved		WCSP (in review)
Viola palmaesis Knowles & Westc.	Unresolved		WCSP (in review)
Viola palmaris Buch.-Ham. ex Ging.	Unresolved		WCSP (in review)
Viola palmata L.	Accepted		TRO
Viola palmata Ging.	Synonym		TRO
Viola palmata var. asarifolia (Pursh) House	Accepted		TRO
Viola palmata var. dilatata Elliott	Synonym		TRO
Viola palmata var. pedatifida (G. Don) Cronquist	Synonym		TRO
Viola palmata var. sororia (Willd.) Pollard	Synonym		TRO
Viola palmata var. triloba (Schwein.) Ging. ex DC.	Synonym		TRO
Viola palmata var. variabilis (Greene) W. Stone	Accepted		TRO
Viola palmata var. villosa (Walter) B.L. Rob.	Accepted		TRO
Viola palmensis Webb & Berthel.	Unresolved		WCSP (in review)
Viola paludosa Clairv.	Unresolved		WCSP (in review)
Viola palustris L.	Accepted		TRO
Viola palustris var. brevipes (M.S. Baker) R.J. Davis	Synonym		TRO
Viola palustris subsp. brevipes M.S. Baker	Synonym		TRO
Viola palustris var. moupinensis (Franch.) Franch.	Synonym		TRO
Viola palustroides (W.Becker) Tzvelev	Unresolved		WCSP (in review)
Viola papilionacea Pursh	Synonym		TRO
Viola papilionacea var. alba (Torr. & A. Gray) Farw.	Unresolved		TRO
Viola × paradoxa Rouy & Foucaud	Unresolved		WCSP (in review)
Viola × paradoxa K.Richt.	Unresolved		WCSP (in review)
Viola paradoxa Lowe	Unresolved		WCSP (in review)
Viola paravaginata H. Hara	Synonym		TRO
Viola × parca House	Unresolved		WCSP (in review)
Viola pardoi W.Becker	Unresolved		WCSP (in review)
Viola pariaetariifolia Banks ex Ging.	Unresolved		WCSP (in review)
Viola parkeri Champ. ex Benth.	Unresolved		WCSP (in review)
Viola parmensis Bailly	Unresolved		WCSP (in review)
Viola parnassifolia Greene	Unresolved		WCSP (in review)
Viola parnonia Kit Tan, Sfikas & Vold	Unresolved		WCSP (in review)
Viola parva E.Adans.	Unresolved		WCSP (in review)
Viola parviflora L.f.	Synonym		WCSP (in review)
Viola parvifolia Benth.	Synonym		TRO
Viola parvifolia Willd. ex Roem. & Schult.	Synonym		TRO
Viola parvula Tineo	Unresolved		WCSP (in review)
Viola parvula Opiz	Unresolved		WCSP (in review)
Viola pascua W.Becker	Unresolved		WCSP (in review)
Viola patagonica W.Becker	Unresolved		WCSP (in review)
Viola patrinii Ging.	Accepted		WCSP (in review)
Viola patrinii var. acuminata (Franch. & Sav.) Makino	Accepted		TRO
Viola patrinii var. brevicalcarata Skvortsov	Synonym		TRO
Viola patrinii var. caespitosa (D. Don) Ridl.	Synonym		TRO
Viola patrinii var. chinensis Ging.	Synonym		TRO
Viola patrinii f. glabra (Nakai) F. Maek.	Synonym		TRO
Viola patrinii var. laotiana H. Boissieu	Synonym		TRO
Viola patrinii var. macrantha Maxim.	Synonym		TRO
Viola patrinii var. minor Makino	Synonym		TRO
Viola patrinii var. nepaulensis Ging.	Synonym		TRO
Viola × paxiana Degen & Zsák	Unresolved		WCSP (in review)
Viola × peckiana House	Unresolved		WCSP (in review)
Viola pectinata E.P. Bicknell	Synonym		TRO
Viola pedata L.	Unresolved		WCSP (in review)
Viola pedata f. ranunculifolia (Juss. ex Poir.) Fernald	Synonym		TRO
Viola pedata var. ranunculifolia (Juss. ex Poir.) Ging.	Unresolved		TRO
Viola pedatifida G. Don	Synonym		TRO
Viola pedatifida var. bernardii Greene	Synonym		TRO
Viola pedatifida subsp. brittoniana (Pollard) L.E. McKinney	Unresolved		TRO
Viola pedatifida subsp. pedatifida	Unresolved		TRO
Viola peduncularis Langsd. ex Ging.	Unresolved		WCSP (in review)
Viola pedunculata Torr. & A.Gray	Unresolved		WCSP (in review)
Viola pedunculata Torr.	Unresolved		WCSP (in review)
Viola pedunculata subsp. tenuifolia M.S. Baker & J.C. Clausen	Synonym		TRO
Viola pedunculata var. tenuifolia (M.S. Baker & J.C. Clausen) J.T. Howell	Unresolved		TRO
Viola pekinensis (Regel) W. Becker	Accepted		TRO
Viola pendulicarpa W. Becker	Accepted		TRO
Viola pensylvanica Michx.	Synonym		TRO
Viola pensylvanica var. leiocarpa (Fernald & Wiegand) Fernald	Synonym		TRO
Viola pentadactyla Fenzl	Unresolved		WCSP (in review)
Viola pentelica Vierh.	Unresolved		WCSP (in review)
Viola peramoena Greene	Unresolved		WCSP (in review)
Viola peregrina Jord. ex Boreau	Unresolved		WCSP (in review)
Viola perennis Bailly	Unresolved		WCSP (in review)
Viola perennis Miégev.	Unresolved		WCSP (in review)
Viola perexigua Colenso	Unresolved		WCSP (in review)
Viola perinensis W.Becker	Unresolved		WCSP (in review)
Viola × permixta Jord.	Unresolved		WCSP (in review)
Viola perpensa Greene	Unresolved		WCSP (in review)
Viola × perpera House	Unresolved		WCSP (in review)
Viola perplexa Gremli	Unresolved		WCSP (in review)
Viola perpusilla H. Boissieu	Accepted		TRO
Viola perrobusta Borbás	Unresolved		WCSP (in review)
Viola persicariifolia Poir.	Unresolved		WCSP (in review)
Viola persicifolia Hegetschw.	Unresolved		WCSP (in review)
Viola persicifolia Schreb.	Unresolved		WCSP (in review)
Viola perstolona Borbás	Unresolved		WCSP (in review)
Viola pesneaui J.Lloyd	Unresolved		WCSP (in review)
Viola petelotii W.Becker ex Gagnep.	Unresolved		WCSP (in review)
Viola × peterfii Nyár.	Unresolved		WCSP (in review)
Viola petraea W.Becker	Unresolved		WCSP (in review)
Viola petrophila Greene	Unresolved		WCSP (in review)
Viola phalacrocarpa Maxim.	Accepted		TRO
Viola phalacrocarpoides Makino	Unresolved		WCSP (in review)
Viola philippiana Greene	Unresolved		WCSP (in review)
Viola philippica Cav.	Accepted		TRO
Viola philippica f. candida (Kitag.) Kitag.	Synonym		TRO
Viola philippica f. intermedia (Kitag.) Kitag.	Synonym		TRO
Viola philippica subsp. malesica W. Becker	Synonym		TRO
Viola philippica subsp. munda W. Becker	Synonym		TRO
Viola philippica var. philippica	Accepted		TRO
Viola philippica var. pseudojaponica (Nakai) Y.S. Chen	Accepted		TRO
Viola philippica var. yunnanfuensis W. Becker	Synonym		TRO
Viola philippii Leyb.	Unresolved		WCSP (in review)
Viola phitosiana Erben	Unresolved		WCSP (in review)
Viola physalodes Greene	Unresolved		WCSP (in review)
Viola phyteumifolia G.Don	Unresolved		WCSP (in review)
Viola pichinchensis Turcz.	Synonym		TRO
Viola picta Gillot	Unresolved		WCSP (in review)
Viola pilosa Blume	Accepted		TRO
Viola pindicola Formánek	Unresolved		WCSP (in review)
Viola pinetorum Greene	Synonym		TRO
Viola pinetorum subsp. grisea (Jeps.) R.J. Little	Unresolved		TRO
Viola pinetorum var. grisea Jeps.	Synonym		TRO
Viola pinnata L.	Unresolved		WCSP (in review)
Viola pinnata Richardson	Unresolved		WCSP (in review)
Viola pinnata var. chaerophylloides Regel	Synonym		TRO
Viola pinnata var. dissecta (Ledeb.) Regel	Synonym		TRO
Viola pinnata subsp. multifida W. Becker	Synonym		TRO
Viola pinnata var. sieboldiana Maxim.	Synonym		TRO
Viola pinnatifida All.	Unresolved		WCSP (in review)
Viola pirottae Chiov.	Unresolved		WCSP (in review)
Viola planifolia Greene	Unresolved		WCSP (in review)
Viola plantaginea Webb ex Christ	Unresolved		WCSP (in review)
Viola pluricaulis Borbás	Unresolved		WCSP (in review)
Viola pobedimovae Serg.	Synonym		WCSP (in review)
Viola podolica Andrz.	Unresolved		WCSP (in review)
Viola podolica Andrz. ex Trautv.	Unresolved		WCSP (in review)
Viola poelliana Murr	Unresolved		WCSP (in review)
Viola poetica Boiss. & Spruner	Unresolved		WCSP (in review)
Viola pogonantha W.W. Sm.	Synonym		TRO
Viola × poltavensis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola polycephala H.E. Ballard & P. Jørg.	Accepted		TRO
Viola polychroma A.Kern.	Unresolved		WCSP (in review)
Viola polygalifolia Poir.	Unresolved		WCSP (in review)
Viola polymorpha C.C. Chang	Synonym		TRO
Viola polyodonta W.Becker	Unresolved		WCSP (in review)
Viola polypoda Turcz.	Accepted		WCSP (in review)
Viola pomelii Sennen & Mauricio	Unresolved		WCSP (in review)
Viola pontica W. Becker	Synonym		TRO
Viola popetae Sparre	Unresolved		TRO
Viola × popovae Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola populifolia Greene	Unresolved		WCSP (in review)
Viola porphyrea Uechtr. ex Garcke	Unresolved		WCSP (in review)
Viola portalesia Gay	Unresolved		WCSP (in review)
Viola portalesia var. portalesia	Unresolved		TRO
Viola porteriana Pollard	Unresolved		WCSP (in review)
Viola portulacea Leyb.	Accepted		TRO
Viola praecox Heuff. ex Fuss	Unresolved		WCSP (in review)
Viola praemorsa Douglas	Accepted		WCSP (in review)
Viola praemorsa var. altior Blank.	Accepted		TRO
Viola praemorsa var. bakeri (Greene) J.T. Howell	Accepted		TRO
Viola praemorsa subsp. flavovirens (Pollard) Fabijan	Accepted		TRO
Viola praemorsa var. linguifolia (Nutt.) M. Peck	Synonym		TRO
Viola praemorsa subsp. linguifolia M.S. Baker & J.C. Clausen ex M. Peck	Synonym		TRO
Viola praemorsa subsp. major (Hook.) M.S. Baker	Synonym		TRO
Viola praemorsa var. major (Hook.) M. Peck	Synonym		TRO
Viola praemorsa var. praemorsa	Accepted		TRO
Viola praemorsa var. venosa (S. Watson) A. Gray	Synonym		TRO
Viola × praesignis Beck	Unresolved		WCSP (in review)
Viola pratensis Mert. & W.D.J.Koch	Unresolved		WCSP (in review)
Viola pratincola Greene	Synonym		TRO
Viola prattii W. Becker	Synonym		TRO
Viola prenja Beck	Unresolved		WCSP (in review)
Viola × preywischiana Nauenb.	Unresolved		WCSP (in review)
Viola priceana Pollard	Synonym		TRO
Viola pricei W. Becker	Synonym		TRO
Viola primorskajensis (W.Becker) Vorosch.	Unresolved		WCSP (in review)
Viola primulifolia L.	Accepted		WCSP (in review)
Viola primulifolia var. acuta (Bigelow) Torr. & A. Gray	Accepted		TRO
Viola primulifolia var. cordata (Walter) DC.	Accepted		TRO
Viola primulifolia var. glabra Nakai	Synonym		TRO
Viola primulifolia subsp. occidentalis (A. Gray) L.E. McKinney & R.J. Little	Accepted		TRO
Viola primulifolia var. occidentalis A. Gray	Synonym		TRO
Viola primulifolia var. villosa Eaton	Synonym		TRO
Viola primulifolia subsp. villosa (Eaton) N. Russell	Accepted		TRO
Viola principis H. Boissieu	Synonym		TRO
Viola principis var. acutifolia Ching J. Wang	Synonym		TRO
Viola pringlei Rose & House	Synonym		TRO
Viola prionantha Bunge	Accepted		WCSP (in review)
Viola prionantha var. incisa Kitag.	Synonym		TRO
Viola prionantha subsp. jaunsariensis W. Becker	Synonym		TRO
Viola prionantha var. sylvatica Kitag.	Synonym		TRO
Viola prionantha var. trichantha Ching J. Wang	Synonym		TRO
Viola prionosepala Greene	Synonym		TRO
Viola procera Pall. ex Ledeb.	Unresolved		WCSP (in review)
Viola procerior Dalla Torre & Sarnth.	Unresolved		WCSP (in review)
Viola procumbens Gilib.	Unresolved		WCSP (in review)
Viola procumbens J.F.Gmel.	Unresolved		WCSP (in review)
Viola producta W.Becker	Unresolved		WCSP (in review)
Viola propera Jord.	Unresolved		WCSP (in review)
Viola propinqua Jord.	Unresolved		WCSP (in review)
Viola provostii Boreau	Unresolved		WCSP (in review)
Viola pruinosa Pollard	Unresolved		WCSP (in review)
Viola prunellifolia Fisch. ex Ging.	Unresolved		WCSP (in review)
Viola prunellifolia Kunth	Unresolved		WCSP (in review)
Viola pruniflora Nakai	Unresolved		WCSP (in review)
Viola prunifolia Humb. & Bonpl. ex Schult.	Synonym		WCSP (in review)
Viola × prutensis Zapal.	Unresolved		WCSP (in review)
Viola psammophila Phil.	Unresolved		WCSP (in review)
Viola pseudasterias Reiche	Synonym		TRO
Viola pseudoarcuata C.C. Chang	Synonym		TRO
Viola pseudobambusetorum Chang	Synonym		TRO
Viola pseudocanina Schur	Unresolved		WCSP (in review)
Viola pseudogracilis Strobl	Unresolved		WCSP (in review)
Viola pseudograeca Erben	Unresolved		WCSP (in review)
Viola pseudojaponica Nakai	Synonym		TRO
Viola pseudolutea Schur	Unresolved		WCSP (in review)
Viola × pseudomakinoi M.Mizush. ex T.Shimizu	Unresolved		WCSP (in review)
Viola pseudomirabilis H.J.Coste	Unresolved		WCSP (in review)
Viola pseudomonbeigii Chang	Synonym		TRO
Viola pseudomontana Blocki	Unresolved		WCSP (in review)
Viola pseudomunbyana W.Becker	Unresolved		WCSP (in review)
Viola pseudoprionantha W.Becker	Unresolved		WCSP (in review)
Viola pseudoselkirki Nakai	Unresolved		WCSP (in review)
Viola pseudosepincola W.Becker	Unresolved		WCSP (in review)
Viola × pseudosilvatica K.Richt.	Unresolved		WCSP (in review)
Viola pseudostagnina Vorosch.	Unresolved		WCSP (in review)
Viola pseudosuavis Schur	Unresolved		WCSP (in review)
Viola pseudovulcanica W.Becker	Unresolved		WCSP (in review)
Viola psychodes Greene	Synonym		TRO
Viola pteropoda Hemsl.	Synonym		TRO
Viola puberula Howell	Unresolved		WCSP (in review)
Viola puberula Lange	Unresolved		WCSP (in review)
Viola pubescens Aiton	Synonym		TRO
Viola pubescens f. achlydophylla (Greene) Farw.	Unresolved		TRO
Viola pubescens var. leiocarpa (Fernald & Wiegand) B. Boivin	Unresolved		TRO
Viola pubescens var. scabriuscula Torr. & A. Gray	Unresolved		TRO
Viola pubinervis Rehm. & Wol.	Unresolved		WCSP (in review)
Viola pulchella Leyb. ex Reiche	Synonym		TRO
Viola pulla W. Becker	Synonym		TRO
Viola pulvinata Reiche	Accepted		TRO
Viola pumila Chaix	Unresolved		WCSP (in review)
Viola pumila Fr. ex Nyman	Unresolved		WCSP (in review)
Viola pumila var. orientalis Kupffer	Synonym		WCSP (in review)
Viola pumilio W.Becker	Unresolved		WCSP (in review)
Viola punctata Humb. ex Schult.	Unresolved		WCSP (in review)
Viola punctata Schwein.	Unresolved		WCSP (in review)
Viola punicea Ruiz & Pav. ex Ging.	Unresolved		WCSP (in review)
Viola purpurascens F.W.Schmidt	Unresolved		WCSP (in review)
Viola purpurea Kellogg	Unresolved		WCSP (in review)
Viola purpurea Steven	Unresolved		WCSP (in review)
Viola purpurea subsp. atriplicifolia (Greene) M.S. Baker & J.C. Clausen	Synonym		TRO
Viola purpurea var. atriplicifolia (Greene) M. Peck	Synonym		TRO
Viola purpurea var. aurea (Kellogg) M.S. Baker ex Jeps.	Synonym		TRO
Viola purpurea subsp. aurea (Kellogg) J.C. Clausen	Synonym		TRO
Viola purpurea var. charlestonensis (M.S. Baker & J.C. Clausen) S.L. Welsh & Reveal	Synonym		TRO
Viola purpurea subsp. dimorpha M.S. Baker & J.C. Clausen	Synonym		TRO
Viola purpurea var. dimorpha (M.S. Baker & J.C. Clausen) J.T. Howell	Unresolved		TRO
Viola purpurea subsp. geophyta M.S. Baker & J.C. Clausen	Synonym		TRO
Viola purpurea var. geophyta (M.S. Baker & J.C. Clausen) J.T. Howell	Unresolved		TRO
Viola purpurea subsp. integrifolia M.S. Baker & J.C. Clausen	Synonym		TRO
Viola purpurea var. integrifolia (M.S. Baker & J.C. Clausen) J.T. Howell	Unresolved		TRO
Viola purpurea subsp. mesophyta M.S. Baker & J.C. Clausen	Synonym		TRO
Viola purpurea var. mesophyta (M.S. Baker & J.C. Clausen) J.T. Howell	Unresolved		TRO
Viola purpurea subsp. mohavensis (M.S. Baker & J.C. Clausen) J.C. Clausen	Synonym		TRO
Viola purpurea var. mohavensis (M.S. Baker & J.C. Clausen) J.T. Howell	Unresolved		TRO
Viola purpurea var. pinetorum (Greene) Greene	Unresolved		TRO
Viola purpurea var. purpurea	Unresolved		TRO
Viola purpurea subsp. quercetorum (M.S. Baker & J.C. Clausen) R.J. Little	Unresolved		TRO
Viola purpurea subsp. venosa (S.Watson) M.S.Baker & J.C.Clausen	Unresolved		WCSP (in review)
Viola purpurea var. venosa (S.Watson) Brainerd	Synonym		WCSP (in review)
Viola pusilla Poepp.	Accepted		WCSP (in review)
Viola pusillima Wedd.	Accepted		TRO
Viola pycnophylla Franch. & Sav.	Unresolved		WCSP (in review)
Viola pygmaea Juss. ex Poir.	Accepted		TRO
Viola × pynzarii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola pyrenaica Ramond ex DC.	Unresolved		WCSP (in review)
Viola pyrenaica Willk.	Unresolved		WCSP (in review)
Viola pyrolifolia Poir.	Synonym		WCSP (in review)
Viola quercetorum M.S. Baker & J.C. Clausen	Synonym		TRO
Viola raddeana Regel	Accepted		TRO
Viola × radians Beck	Unresolved		WCSP (in review)
Viola radicans DC. ex Ging.	Unresolved		WCSP (in review)
Viola rafinesquei Greene	Synonym		TRO
Viola ramosa Gaterau	Unresolved		WCSP (in review)
Viola ramosiana W.Becker	Unresolved		WCSP (in review)
Viola ramosissima Turcz.	Synonym		TRO
Viola ranunculifolia Juss. ex Poir.	Synonym		TRO
Viola rauliniana Erben	Unresolved		WCSP (in review)
Viola rausii Erben	Unresolved		WCSP (in review)
Viola × ravida House	Unresolved		WCSP (in review)
Viola recta Garcke	Unresolved		WCSP (in review)
Viola redunca House	Unresolved		WCSP (in review)
Viola × regeliana Rouy & Foucaud	Unresolved		WCSP (in review)
Viola reichei Skottsb. ex Macloskie	Accepted		WCSP (in review)
Viola reichei Skottsb.	Unresolved		TRO
Viola reichei f. gunckelii Sparre	Synonym		TRO
Viola reichenbachiana Jord. ex Boreau	Accepted		WCSP (in review)
Viola reidiae Cory	Unresolved		WCSP (in review)
Viola renifolia A. Gray	Synonym		TRO
Viola renifolia var. brainerdii (Greene) Fernald	Unresolved		TRO
Viola reniformis R.Br. ex Ging.	Unresolved		WCSP (in review)
Viola reniformis Wall.	Unresolved		WCSP (in review)
Viola repens Turcz. ex Trautv. & C.A.Mey. [Illegitimate]	Synonym		WCSP (in review)
Viola replicata W. Becker	Accepted		TRO
Viola reptabunda Greene	Unresolved		WCSP (in review)
Viola reptans B.L. Rob.	Synonym		TRO
Viola × reschetnikovae Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola resupinata Moench	Unresolved		WCSP (in review)
Viola reticulata Schltdl.	Unresolved		WCSP (in review)
Viola retroscabra Greene	Synonym		TRO
Viola retusa Greene	Unresolved		WCSP (in review)
Viola reverchonii Wenk	Unresolved		WCSP (in review)
Viola reverchonii Willk. ex Debeaux	Unresolved		WCSP (in review)
Viola revoluta Heuff. ex Rchb.	Unresolved		WCSP (in review)
Viola × rhaetica Borbás	Unresolved		WCSP (in review)
Viola rheophila Okamoto	Unresolved		WCSP (in review)
Viola rhizomata Nakai	Unresolved		WCSP (in review)
Viola rhodanica Chatenier & Revol	Unresolved		WCSP (in review)
Viola rhodopeia W.Becker	Unresolved		WCSP (in review)
Viola rhodopensis Formánek	Unresolved		WCSP (in review)
Viola rhodosepala Kitag.	Synonym		TRO
Viola rhombifolia Leybold	Accepted		TRO
Viola riddensis F.O.Wolf	Unresolved		WCSP (in review)
Viola riloensis W.Becker	Unresolved		WCSP (in review)
Viola riparia C.V.Hartm.	Unresolved		WCSP (in review)
Viola riphaea J.F.Gmel.	Unresolved		WCSP (in review)
Viola ritschliana W.Becker	Unresolved		WCSP (in review)
Viola riviniana Rchb.	Accepted		WCSP (in review)
Viola × robinsoniana House	Unresolved		WCSP (in review)
Viola robinsonii Ridl.	Unresolved		WCSP (in review)
Viola roccabrunensis Espeut	Unresolved		WCSP (in review)
Viola rockiana W. Becker	Synonym		TRO
Viola rockii H.St.John	Unresolved		WCSP (in review)
Viola rodriguezii W.Becker	Unresolved		WCSP (in review)
Viola rogoviczii Andrz. ex Trautv.	Unresolved		WCSP (in review)
Viola roigii Rossow	Accepted		TRO
Viola rolandi-bonapartei W.Wolf	Unresolved		WCSP (in review)
Viola ronnigeri W.Becker	Unresolved		WCSP (in review)
Viola rosacea Brainerd	Synonym		TRO
Viola rossii Hemsl.	Accepted		TRO
Viola rosthornii E. Pritz.	Synonym		TRO
Viola rostrata Pursh	Synonym		TRO
Viola rostrata f. phelpsiae Fernald	Synonym		TRO
Viola rostrata var. phelpsiae (Fernald) Farw.	Unresolved		TRO
Viola rosulata Poepp. & Endl.	Accepted		WCSP (in review)
Viola rothomagensis Desf.	Unresolved		WCSP (in review)
Viola rotundifolia Hook.	Unresolved		WCSP (in review)
Viola rotundifolia Hegetschw.	Unresolved		WCSP (in review)
Viola rotundifolia Michx.	Unresolved		WCSP (in review)
Viola rotundifolia var. pallens Banks ex DC.	Unresolved		TRO
Viola rouyana W.Wolf	Unresolved		WCSP (in review)
Viola roxburghiana Voigt	Unresolved		WCSP (in review)
Viola × roxolanica Zapal.	Unresolved		WCSP (in review)
Viola roxolanica Blocki	Unresolved		WCSP (in review)
Viola royleana Wall.	Unresolved		WCSP (in review)
Viola rubella Cav.	Accepted		TRO
Viola rubella var. angustifolia Gingins	Synonym		TRO
Viola rubella var. latifolia Gingins	Synonym		TRO
Viola rubra Aubl. ex Steud.	Unresolved		WCSP (in review)
Viola rubrifolia Boiss.	Unresolved		TRO
Viola rudolfii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola rudolphii Sparre	Accepted		TRO
Viola rugosa Phil. ex W. Becker	Accepted		TRO
Viola rugulosa Greene	Synonym		TRO
Viola × rupestriformis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola rupestris F.W.Schmidt	Accepted		WCSP (in review)
Viola rupestris subsp. glaberrima (Murb.) Vl.V.Nikitin	Synonym		WCSP (in review)
Viola rupestris var. glaberrima Murb.	Accepted		WCSP (in review)
Viola rupestris subsp. rupestris	Accepted		TRO
Viola rupicola Elmer	Unresolved		WCSP (in review)
Viola ruppii Hegetschw.	Unresolved		WCSP (in review)
Viola ruppii J.Presl & C.Presl	Unresolved		WCSP (in review)
Viola ruppii All.	Unresolved		WCSP (in review)
Viola ruppii Rchb.	Unresolved		WCSP (in review)
Viola ruralis Jord. ex Boreau	Unresolved		WCSP (in review)
Viola russellii B.Boivin	Unresolved		WCSP (in review)
Viola rydbergii Greene	Synonym		TRO
Viola × ryoniae House	Unresolved		WCSP (in review)
Viola × sabuletorum Rouy & Foucaud	Unresolved		WCSP (in review)
Viola sabulosa Boreau	Unresolved		WCSP (in review)
Viola saccata Melch.	Accepted		TRO
Viola sacchalinensis H.Boissieu	Accepted		WCSP (in review)
Viola sacchalinensis var. alpicola P.Y. Fu & Y.C. Teng	Accepted		TRO
Viola sacchalinensis var. sacchalinensis	Accepted		TRO
Viola sacculus Skottsb.	Unresolved		WCSP (in review)
Viola sacraricola Nakai	Unresolved		WCSP (in review)
Viola sagittata Aiton	Unresolved		WCSP (in review)
Viola sagittata var. emarginata Nutt.	Synonym		TRO
Viola sagittata var. fimbriatula Sm.	Synonym		TRO
Viola sagittata var. hicksii Pollard	Synonym		TRO
Viola sagittata var. ovata (Nutt.) Torr. & A. Gray	Unresolved		TRO
Viola sagittata var. secedens (Greene) Farw.	Unresolved		TRO
Viola sagittata var. subsagittata (Greene) Pollard	Unresolved		TRO
Viola sagittata f. umbelliflora (Fernald) Scoggan	Unresolved		TRO
Viola sagittifolia Salisb.	Unresolved		WCSP (in review)
Viola sagotii Jord.	Unresolved		WCSP (in review)
Viola salina Turcz.	Unresolved		WCSP (in review)
Viola × salvatoriana W.Becker & Thell.	Unresolved		WCSP (in review)
Viola samothracica (Degen) Raus	Unresolved		WCSP (in review)
Viola sandbergii Greene	Unresolved		WCSP (in review)
Viola sandrasea Melch.	Unresolved		WCSP (in review)
Viola sandwicensis H.Lév.	Unresolved		WCSP (in review)
Viola × sanensis Zapal.	Unresolved		WCSP (in review)
Viola santiagoensis Becker,W.	Accepted		TRO
Viola sapporensis Franch. ex H.Boissieu	Unresolved		WCSP (in review)
Viola sardagnae W.Becker	Unresolved		WCSP (in review)
Viola sarmentosa Burgersd.	Unresolved		WCSP (in review)
Viola sarmentosa M.Bieb.	Unresolved		WCSP (in review)
Viola sarmentosa Douglas	Unresolved		WCSP (in review)
Viola sarmentosa var. orbiculata (Geyer ex Holz.) A. Gray	Synonym		TRO
Viola sarotina P.Fourn.	Unresolved		WCSP (in review)
Viola savatieri Makino	Accepted		TRO
Viola savatieri var. detonsa Kitag.	Synonym		TRO
Viola savatieri f. detonsa (Kitag.) Kitag.	Synonym		TRO
Viola saxatilis F.W.Schmidt	Unresolved		WCSP (in review)
Viola saxatilis Hoffmanns. ex Schult.	Unresolved		WCSP (in review)
Viola saxicola Schult.	Unresolved		WCSP (in review)
Viola saxifraga Maire	Unresolved		WCSP (in review)
Viola saxigena Schur	Unresolved		WCSP (in review)
Viola scabra F.Braun	Unresolved		WCSP (in review)
Viola scabrida Nakai	Unresolved		WCSP (in review)
Viola scabriuscula Shafer	Unresolved		WCSP (in review)
Viola scandens Humb. & Bonpl. ex Schult.	Accepted		WCSP (in review)
Viola scandens Kunth	Synonym		TRO
Viola scandens var. hirtella L.B. Sm. & A. Fernández	Synonym		TRO
Viola scanica Fr.	Unresolved		WCSP (in review)
Viola scardica Nyman	Unresolved		WCSP (in review)
Viola scaturiginosa Wallr.	Unresolved		WCSP (in review)
Viola schachimardanica Khalk.	Unresolved		WCSP (in review)
Viola schaffneriana Becker	Synonym		TRO
Viola × schalmausenii Rouy & Foucaud	Unresolved		WCSP (in review)
Viola schariensis Erben	Unresolved		WCSP (in review)
Viola × schauloi Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola schensiensis W. Becker	Synonym		TRO
Viola × schlarlockii W.Becker	Unresolved		WCSP (in review)
Viola schleidettiana Bogenh.	Unresolved		WCSP (in review)
Viola schmidtiana Schult.	Unresolved		WCSP (in review)
Viola schneideri W. Becker	Synonym		TRO
Viola schoenachii Murr & Pôll	Unresolved		WCSP (in review)
Viola schultzii Billot ex F.W.Schultz	Unresolved		WCSP (in review)
Viola schulzeana W. Becker	Synonym		TRO
Viola sciaphila W.D.J.Koch	Unresolved		WCSP (in review)
Viola sciaphila Joó ex Janka	Unresolved		WCSP (in review)
Viola scopulorum (A. Gray) Greene	Synonym		TRO
Viola scorpiuroides Coss.	Unresolved		WCSP (in review)
Viola scotophylla Jord.	Accepted		TRO
Viola scouleri Douglas ex Steud.	Unresolved		WCSP (in review)
Viola scrotiformis DC.	Synonym		TRO
Viola secedens Greene	Synonym		TRO
Viola securigera Greene	Unresolved		WCSP (in review)
Viola sedunensis F.O.Wolf	Unresolved		WCSP (in review)
Viola segetalis Jord.	Unresolved		WCSP (in review)
Viola × segniensis Gáyer & Degen	Unresolved		WCSP (in review)
Viola segobricensis Pau	Synonym		WCSP (in review)
Viola seleriana W. Becker	Accepted		TRO
Viola selkirkii Pursh ex Goldie	Accepted		WCSP (in review)
Viola selkirkii var. albiflora Nakai	Synonym		TRO
Viola selkirkii var. angustistipulata W. Becker	Synonym		TRO
Viola selkirkii var. brevicalcarata W. Becker	Synonym		TRO
Viola selkirkii var. subbarbata W. Becker	Synonym		TRO
Viola selkirkii var. variegata Nakai	Synonym		TRO
Viola semilunaris W.Becker	Unresolved		WCSP (in review)
Viola semperflorens Steud.	Unresolved		WCSP (in review)
Viola sempervirens Greene	Unresolved		WCSP (in review)
Viola sempervirens subsp. orbiculata (Geyer ex Holz.) M.S. Baker	Unresolved		TRO
Viola sempervirens var. orbiculata (Geyer ex Holz.) J.K. Henry	Synonym		TRO
Viola sempervivum Gay	Accepted		TRO
Viola senamiensis Nakai	Unresolved		WCSP (in review)
Viola senecionis Greene	Unresolved		WCSP (in review)
Viola senecta A. Nelson	Synonym		TRO
Viola sennenii Pau	Unresolved		WCSP (in review)
Viola senzanensis Hayata	Accepted		TRO
Viola seoulensis Nakai	Unresolved		WCSP (in review)
Viola sepincola Jord.	Unresolved		WCSP (in review)
Viola septemloba Leconte	Unresolved		WCSP (in review)
Viola septemloba subsp. egglestonii (Brainerd) McKinney	Unresolved		TRO
Viola septempunctata Siehe ex Bornm.	Unresolved		WCSP (in review)
Viola septentrionalis Greene	Accepted		WCSP (in review)
Viola septentrionalis var. grisea Fernald	Synonym		TRO
Viola sequoiensis Kellogg	Unresolved		WCSP (in review)
Viola serbica Formánek	Unresolved		WCSP (in review)
Viola sergievskajae Tzvelev	Synonym		WCSP (in review)
Viola serpens Wall. ex Ging.	Synonym		TRO
Viola serpens var. confusa (Champ. ex Benth.) Hook. f. & Thomson	Synonym		TRO
Viola serpens subsp. gurhwalensis W. Becker	Synonym		TRO
Viola serpens var. pseudoscotophylla Boiss.	Synonym		TRO
Viola serpyllifolia Humb. & Bonpl. ex Schult.	Unresolved		WCSP (in review)
Viola serresiana Erben	Unresolved		WCSP (in review)
Viola serrula W. Becker	Accepted		TRO
Viola setosa Sm.	Unresolved		WCSP (in review)
Viola sfikasiana Erben	Unresolved		WCSP (in review)
Viola sheltonii Torr.	Unresolved		WCSP (in review)
Viola sheltonii var. biternata (Greene) A. Nelson	Unresolved		TRO
Viola shikokiana Makino	Unresolved		WCSP (in review)
Viola shinchikuensis Yamam.	Synonym		TRO
Viola sicula Schur	Unresolved		WCSP (in review)
Viola sieberi Hook.	Unresolved		WCSP (in review)
Viola sieberiana Spreng.	Unresolved		WCSP (in review)
Viola sieboldiana (Maxim.) Makino	Synonym		TRO
Viola sieboldiana var. chaerophylloides (Regel) Nakai	Synonym		TRO
Viola sieboldii Maxim.	Unresolved		WCSP (in review)
Viola sieheana W.Becker	Unresolved		WCSP (in review)
Viola sikkimensis W. Becker	Accepted		TRO
Viola sikkimensis var. debilis W. Becker	Synonym		TRO
Viola silana Merino	Unresolved		WCSP (in review)
Viola silicestris K.R.Thiele & Prober	Unresolved		WCSP (in review)
Viola silvatica Fr. ex C.Hartm.	Unresolved		WCSP (in review)
Viola silvatica var. adunca Kurtz	Synonym		TRO
Viola silvestriformis W. Becker	Synonym		TRO
Viola simulata M.S.Baker	Unresolved		WCSP (in review)
Viola sintenisii W.Becker	Unresolved		WCSP (in review)
Viola skanderbegii Dörfl. & Hayek	Unresolved		WCSP (in review)
Viola skofitziana Wiesb.	Unresolved		WCSP (in review)
Viola skottsbergiana Becker	Accepted		TRO
Viola slavikii Formánek	Unresolved		WCSP (in review)
Viola × slavinii House	Unresolved		WCSP (in review)
Viola × slesvicensis Prahl	Unresolved		WCSP (in review)
Viola smithiana W. Becker	Synonym		TRO
Viola × sokalensis Zapal.	Unresolved		WCSP (in review)
Viola somalensis Engl.	Unresolved		WCSP (in review)
Viola somchetica K.Koch	Unresolved		WCSP (in review)
Viola soongorica Fisch. ex Ledeb.	Unresolved		WCSP (in review)
Viola sordida Dalla Torre & Sarnth.	Unresolved		WCSP (in review)
Viola sororia Willd.	Accepted		TRO
Viola sororia subsp. affinis (Leconte) R.J. Little	Accepted		TRO
Viola sororia var. affinis (Leconte) L.E. McKinney	Synonym		TRO
Viola sororia var. missouriensis (Greene) L.E. McKinney	Accepted		TRO
Viola sororia var. novae-angliae (House) L.E. McKinney	Accepted		TRO
Viola sororia var. sororia	Accepted		TRO
Viola sosnowskyi Kopell.	Unresolved		WCSP (in review)
Viola spathulata Willd. ex Schult.	Unresolved		WCSP (in review)
Viola speciosa Pant.	Unresolved		WCSP (in review)
Viola speciosa Schrad. ex Rchb.	Unresolved		WCSP (in review)
Viola spectabilis K.Richt.	Unresolved		WCSP (in review)
Viola spegazzinii W.Becker	Unresolved		WCSP (in review)
Viola sphaerocarpa W. Becker	Accepted		TRO
Viola splendida W.Becker	Unresolved		WCSP (in review)
Viola sprengeliana Steud.	Unresolved		WCSP (in review)
Viola × spuria Celak.	Unresolved		WCSP (in review)
Viola squamulosa W.Becker	Unresolved		WCSP (in review)
Viola stagnina Kit.	Unresolved		WCSP (in review)
Viola stagnira Kit.	Unresolved		TRO
Viola steinbachii W. Becker	Accepted		TRO
Viola stellata Miers	Unresolved		WCSP (in review)
Viola stenantha Greene	Unresolved		WCSP (in review)
Viola stenocentra Hayata ex Nakai	Synonym		TRO
Viola stevenii Besser ex Fauc.	Unresolved		WCSP (in review)
Viola stewardiana W. Becker	Accepted		TRO
Viola stipularis Sw.	Accepted		WCSP (in review)
Viola stipularis Cav.	Synonym		TRO
Viola stipularis Kunth	Synonym		TRO
Viola stocksii Boiss.	Synonym		TRO
Viola stojanowii W.Becker	Unresolved		WCSP (in review)
Viola stolonifera J.J.Rodr.	Unresolved		WCSP (in review)
Viola stoloniflora Yokota & Higa	Unresolved		WCSP (in review)
Viola stoneana House	Synonym		TRO
Viola striata Aiton	Synonym		TRO
Viola striatella H. Boissieu	Accepted		TRO
Viola stricta Hornem.	Unresolved		WCSP (in review)
Viola stricta Poir.	Unresolved		WCSP (in review)
Viola stricta Muhl. ex Pursh	Unresolved		WCSP (in review)
Viola striis-notata (J.Wagner) Merxm. & W.Lippert	Unresolved		WCSP (in review)
Viola × stuartii Bergmans	Unresolved		WCSP (in review)
Viola stuebelii Hieron.	Unresolved		WCSP (in review)
Viola suaveolens Schur	Unresolved		WCSP (in review)
Viola suaveolens E.P.Perrier & Songeon	Unresolved		WCSP (in review)
Viola × suaveolens Wiesb.	Unresolved		WCSP (in review)
Viola × suaviflora Borbás & Heinr.Braun	Unresolved		WCSP (in review)
Viola suavis M.Bieb.	Accepted		WCSP (in review)
Viola suavis var. segobricensis (Pau) O.Bolòs & Vigo	Synonym		WCSP (in review)
Viola suavissima Jord.	Unresolved		WCSP (in review)
Viola × subaffinis House	Unresolved		WCSP (in review)
Viola subandina J.M.Watson	Unresolved		WCSP (in review)
Viola subatlantica (Maire) Ibn Tattou	Unresolved		WCSP (in review)
Viola subcarnea Jord.	Unresolved		WCSP (in review)
Viola × subcollina Beck	Unresolved		WCSP (in review)
Viola subcordata Greene	Unresolved		WCSP (in review)
Viola subcrenata Phil. ex F.Meigen	Unresolved		WCSP (in review)
Viola subdelavayi S.H. Huang	Synonym		TRO
Viola subdimidiata A.St.-Hil.	Unresolved		WCSP (in review)
Viola suberosa Desf.	Unresolved		WCSP (in review)
Viola subglabrata Pôll ex W.Becker	Unresolved		WCSP (in review)
Viola × subhirta Beck	Unresolved		WCSP (in review)
Viola subjuncta Greene	Unresolved		WCSP (in review)
Viola × sublanceolata House	Unresolved		WCSP (in review)
Viola suboderata Dalla Torre & Sarnth.	Unresolved		WCSP (in review)
Viola × subodorata Borbás ex Murr	Unresolved		WCSP (in review)
Viola subpubescens Borbás	Unresolved		WCSP (in review)
Viola subrotunda Greene	Unresolved		WCSP (in review)
Viola subsagittata Greene	Synonym		TRO
Viola subsagittifolia Suksd.	Unresolved		WCSP (in review)
Viola subsessilifolia Lázaro Iberia	Unresolved		WCSP (in review)
Viola subsinuata (Greene) Greene	Accepted		TRO
Viola subtilis Jord.	Unresolved		WCSP (in review)
Viola subvestita Greene	Unresolved		WCSP (in review)
Viola subviscosa Greene	Unresolved		WCSP (in review)
Viola sudetica Willd.	Unresolved		WCSP (in review)
Viola suecica Fr.	Unresolved		WCSP (in review)
Viola suffruticosa L.	Synonym		TRO
Viola × sukaczewii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola sulfurea Cariot	Unresolved		WCSP (in review)
Viola sumatrana Miq.	Accepted		TRO
Viola summa Vell.	Unresolved		WCSP (in review)
Viola superba M.S.Baker	Unresolved		WCSP (in review)
Viola × superodorata Greg.	Unresolved		WCSP (in review)
Viola sylvestris Lam.	Synonym		TRO
Viola sylvestris var. candida (H. Boissieu) H. Lév.	Synonym		TRO
Viola sylvestris var. grypoceras (A. Gray) Maxim.	Synonym		TRO
Viola symei Baker	Unresolved		WCSP (in review)
Viola szetschwanensis W. Becker & H. Boissieu	Accepted		TRO
Viola szetschwanensis var. kangdienensis Chang	Synonym		TRO
Viola szetschwanensis var. nudicaulis W. Becker	Synonym		TRO
Viola szilyana Borbás	Unresolved		WCSP (in review)
Viola taishanensis Ching J. Wang	Synonym		TRO
Viola taiwanensis W. Becker	Synonym		TRO
Viola taiwaniana Nakai	Synonym		TRO
Viola × takahashii (Nakai) Taken.	Synonym		TRO
Viola takahashii (Nakai) Taken.	Synonym		TRO
Viola takasagoensis Koidz.	Synonym		TRO
Viola takedana Makino	Synonym		TRO
Viola takesimana Nakai	Unresolved		WCSP (in review)
Viola × talmensis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola taltalensis W.Becker	Unresolved		WCSP (in review)
Viola tanaitica Grosset	Unresolved		WCSP (in review)
Viola tanakaeana Makino	Unresolved		WCSP (in review)
Viola × taradakensis Nakai	Unresolved		WCSP (in review)
Viola tarbagataica Klokov	Unresolved		WCSP (in review)
Viola tashiroi Makino	Unresolved		WCSP (in review)
Viola × tatrae Borbás	Unresolved		WCSP (in review)
Viola tayemonii Hayata	Synonym		TRO
Viola tectiflora W.Becker	Unresolved		WCSP (in review)
Viola tenella Muhl.	Synonym		TRO
Viola tenerrima Wiesb. ex Nyman	Unresolved		WCSP (in review)
Viola tenorei N.Terracc.	Unresolved		WCSP (in review)
Viola tenuicornis W. Becker	Accepted		TRO
Viola tenuicornis var. brachytricha W. Becker	Synonym		TRO
Viola tenuicornis subsp. primorskajensis W. Becker	Synonym		TRO
Viola tenuicornis subsp. tenuicornis	Accepted		TRO
Viola tenuicornis subsp. trichosepala W. Becker	Accepted		TRO
Viola tenuipes Pollard	Unresolved		WCSP (in review)
Viola tenuis Benth.	Synonym		TRO
Viola tenuissima Chang	Accepted		TRO
Viola teplouchovii Juz.	Unresolved		WCSP (in review)
Viola × teresiana Sennen & Gonzalo	Unresolved		WCSP (in review)
Viola × teriana Sennen	Unresolved		WCSP (in review)
Viola teshioensis Miyabe & Tatew.	Synonym		TRO
Viola × tessinensis W.Becker	Unresolved		WCSP (in review)
Viola tetrapetala Molina	Unresolved		WCSP (in review)
Viola teucriifolia Humb. & Bonpl. ex Schult.	Unresolved		WCSP (in review)
Viola × texidoris Sennen & Gonzalo	Unresolved		WCSP (in review)
Viola teydea Berthel.	Unresolved		WCSP (in review)
Viola tezensis Ball	Unresolved		WCSP (in review)
Viola thasia W.Becker	Unresolved		WCSP (in review)
Viola thesiifolia Juss. ex Poir.	Synonym		TRO
Viola thessala Boiss. & Spruner	Unresolved		WCSP (in review)
Viola thessala Heldr. ex Nyman	Unresolved		WCSP (in review)
Viola thianschanica Maxim.	Synonym		TRO
Viola thibaudieri Franch. & Sav.	Unresolved		WCSP (in review)
Viola thomasiana Songeon & E.P.Perrier	Unresolved		WCSP (in review)
Viola thompsoniae Chapm.	Unresolved		WCSP (in review)
Viola thomsonae Chapm.	Unresolved		WCSP (in review)
Viola thomsonii Oudem.	Accepted		TRO
Viola thorii A. Nelson	Synonym		TRO
Viola thymifolia Britton	Accepted		TRO
Viola × tichomirovii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola tidestromii Greene	Synonym		TRO
Viola tienschiensis W. Becker	Accepted		TRO
Viola × tigirekica Vl.V.Nikitin	Accepted		WCSP (in review)
Viola timbali Jord.	Unresolved		WCSP (in review)
Viola × tiroliensis Borbás	Unresolved		WCSP (in review)
Viola tokubuchiana Makino	Unresolved		WCSP (in review)
Viola tokubuchiana var. takedana (Makino) F. Maek.	Unresolved		TRO
Viola tolosana Timb.-Lagr.	Unresolved		WCSP (in review)
Viola tomentosa M.S.Baker & J.C.Clausen	Unresolved		WCSP (in review)
Viola tonkinensis Gagnep.	Unresolved		WCSP (in review)
Viola toppingii Elmer	Unresolved		WCSP (in review)
Viola toroensis Martic.	Accepted		TRO
Viola torresii Marcet	Unresolved		WCSP (in review)
Viola tosaensis Nakai	Unresolved		WCSP (in review)
Viola × tourbillonensis W.Becker	Unresolved		WCSP (in review)
Viola tourbillonensis W.Becker	Unresolved		WCSP (in review)
Viola tozanensis Hayata	Synonym		TRO
Viola tracheliifolia Ging.	Unresolved		WCSP (in review)
Viola transsilvanica Schur	Unresolved		WCSP (in review)
Viola triangularifera Baker	Unresolved		TRO
Viola triangulifolia W. Becker	Accepted		TRO
Viola trichopetala C.C. Chang	Accepted		TRO
Viola trichopoda Hayata	Synonym		TRO
Viola trichosepala (W. Becker) Juz.	Synonym		TRO
Viola tricolor L.	Accepted		WCSP (in review)
Viola tricolor var. arvensis (Murray) DC.	Synonym		TRO
Viola tricolor var. hortensis DC.	Synonym		TRO
Viola tricolor subsp. matutina Valentine	Synonym		TRO
Viola tricolor f. tenella (Muhl.) Farw.	Accepted		TRO
Viola tridentata Menz. ex DC.	Accepted		TRO
Viola tridentina W.Becker	Unresolved		WCSP (in review)
Viola trifida Spreng.	Unresolved		WCSP (in review)
Viola triflabellata W.Becker	Unresolved		WCSP (in review)
Viola triloba Schwein.	Synonym		TRO
Viola triloba var. dilatata (Elliott) Brainerd	Synonym		TRO
Viola triloba f. dilatata (Elliott) E.J. Palmer & Steyerm.	Unresolved		TRO
Viola trinervata (Howell) Howell ex A. Gray	Accepted		TRO
Viola trinervis Korth.	Unresolved		WCSP (in review)
Viola trinitatis Losa	Unresolved		WCSP (in review)
Viola tripartita Elliott	Synonym		TRO
Viola tripartita var. glaberrima (Ging.) R.M. Harper	Synonym		TRO
Viola × tristicha Waisb.	Unresolved		WCSP (in review)
Viola truncata W. Becker	Synonym		TRO
Viola tsugitakaensis Masam.	Synonym		TRO
Viola tuberifera Franch.	Synonym		TRO
Viola tuberifera var. brevipedicellata S.Yung Chen	Synonym		TRO
Viola tuberifera var. pseudopalustris H. Lév.	Synonym		TRO
Viola tuberosa Steud.	Unresolved		WCSP (in review)
Viola tucumanensis W.Becker	Unresolved		WCSP (in review)
Viola turczaninowii Juz.	Synonym		TRO
Viola turfosa Kirschl. ex F.J.Schultz	Unresolved		WCSP (in review)
Viola turkestanica Regel & Schmalh.	Unresolved		WCSP (in review)
Viola × tuvinica Vl.V.Nikitin	Accepted		WCSP (in review)
Viola × tzvelevii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola ucriana Erben & Raimondo	Unresolved		WCSP (in review)
Viola ugamica Juz.	Unresolved		WCSP (in review)
Viola uleana W.Becker	Unresolved		WCSP (in review)
Viola uliginosa Besser	Unresolved		WCSP (in review)
Viola uliginosa Muhl.	Unresolved		WCSP (in review)
Viola umbellata Sessé & Moc.	Unresolved		WCSP (in review)
Viola umbraticola Kunth	Accepted		TRO
Viola umbrosa Fr.	Synonym		WCSP (in review)
Viola umemurae Makino	Unresolved		WCSP (in review)
Viola uncinulata Greene	Synonym		TRO
Viola unguiculata Greene	Unresolved		WCSP (in review)
Viola uniflora L.	Accepted		WCSP (in review)
Viola uniflora subsp. lasczinskyi Zuev	Synonym		WCSP (in review)
Viola uniflora var. orientalis Maxim.	Synonym		TRO
Viola unwinii W.Becker	Unresolved		WCSP (in review)
Viola urophylla Franch.	Accepted		TRO
Viola urophylla var. urophylla	Accepted		TRO
Viola ursina Kom.	Synonym		TRO
Viola utahensis M.S.Baker & J.C.Clausen	Unresolved		WCSP (in review)
Viola utahensis ms baker & jc clausen x beckwithii Torr. & A. Gray	Unresolved		TRO
Viola utchinensis Koidz.	Unresolved		WCSP (in review)
Viola vadimii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola vadutiensis Murr & Pôll	Unresolved		WCSP (in review)
Viola vaginata Maxim.	Unresolved		WCSP (in review)
Viola vaginata subsp. alata W. Becker	Synonym		TRO
Viola vaginata var. sutchuensis Franch. ex H. Boissieu	Synonym		TRO
Viola vagula Greene	Unresolved		WCSP (in review)
Viola valderia All.	Unresolved		WCSP (in review)
Viola valderia Rchb.	Unresolved		WCSP (in review)
Viola valdiviana Kalela	Unresolved		WCSP (in review)
Viola valentiana W.Becker	Unresolved		WCSP (in review)
Viola valesiaca Hausskn. ex Favrat	Unresolved		WCSP (in review)
Viola vallenarensis Becker	Accepted		TRO
Viola vallicola A. Nelson	Accepted		TRO
Viola vallicola var. major (Hook.) Fabijan	Synonym		TRO
Viola vandasii Velen.	Unresolved		WCSP (in review)
Viola vanroyenii H.St.John	Unresolved		WCSP (in review)
Viola variabilis Greene	Synonym		TRO
Viola variata Jord.	Unresolved		WCSP (in review)
Viola variegata Fisch. ex Link	Accepted		TRO
Viola variegata var. chinensis Bunge ex Regel	Synonym		TRO
Viola variegata f. ircutiana F. Maek.	Synonym		TRO
Viola variegata var. viridis Kitag.	Synonym		TRO
Viola variegata f. viridis (Kitag.) P.Y. Fu & Y.C. Teng	Synonym		TRO
Viola variifrons Pôll	Unresolved		WCSP (in review)
Viola × vaudensis Hausskn. ex Gremli	Unresolved		WCSP (in review)
Viola vectensis Drabble	Unresolved		WCSP (in review)
Viola velutina Formánek	Unresolved		WCSP (in review)
Viola venezuelensis Steyerm.	Synonym		WCSP (in review)
Viola venosa (S. Watson) Rydb.	Synonym		TRO
Viola venusta Nakai	Unresolved		WCSP (in review)
Viola venustula Greene	Unresolved		WCSP (in review)
Viola verbascula Greene	Unresolved		WCSP (in review)
Viola verecunda A. Gray	Synonym		TRO
Viola verecunda f. hensoaensis Kudô & Sasaki	Synonym		TRO
Viola verecunda f. radicans Makino	Synonym		TRO
Viola verecunda var. semilunaris Maxim.	Synonym		TRO
Viola × vermontana House	Unresolved		WCSP (in review)
Viola veronicifolia Planch. & Linden	Accepted		TRO
Viola versicolor Salisb.	Unresolved		WCSP (in review)
Viola verticillata Ortega	Synonym		TRO
Viola vespertilionis Greene	Unresolved		WCSP (in review)
Viola vespertina Klokov	Unresolved		WCSP (in review)
Viola viarum Pollard	Accepted		WCSP (in review)
Viola × viatkensis Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola vicina Martrin-Donos	Unresolved		WCSP (in review)
Viola vicinalis Greene	Unresolved		WCSP (in review)
Viola vilaensis Hayek	Unresolved		WCSP (in review)
Viola villaquensis Benz	Unresolved		WCSP (in review)
Viola villarsiana Schult.	Unresolved		WCSP (in review)
Viola villosa Walter	Synonym		TRO
Viola vilmoriniana Delacour & Mottet	Unresolved		WCSP (in review)
Viola × vilnaensis W.Becker	Unresolved		WCSP (in review)
Viola × vindobonensis Wiesb.	Unresolved		WCSP (in review)
Viola violacea Makino	Accepted		TRO
Viola virescens Jord. ex Boreau	Unresolved		WCSP (in review)
Viola virgata Gren.	Unresolved		WCSP (in review)
Viola × visseriana Bergmans	Unresolved		WCSP (in review)
Viola vittata Greene	Synonym		TRO
Viola vivariensis Jord.	Unresolved		WCSP (in review)
Viola volcanica Gillies ex Hook. & Arn.	Accepted		WCSP (in review)
Viola volcanica var. volcanica	Accepted		TRO
Viola voliotisii Erben	Unresolved		WCSP (in review)
Viola × vorarlbergensis W.Becker	Unresolved		WCSP (in review)
Viola vourinensis Erben	Unresolved		WCSP (in review)
Viola vranicensis Beck	Unresolved		WCSP (in review)
Viola vulgaris Rupr.	Unresolved		WCSP (in review)
Viola wahlenbergii Beurl. ex Nyman	Unresolved		WCSP (in review)
Viola wailenalenae (Rock) Skottsb.	Unresolved		WCSP (in review)
Viola walkeri Wight	Unresolved		WCSP (in review)
Viola wallichiana Ging.	Accepted		TRO
Viola wallichiana subsp. brevicornis W. Becker	Synonym		TRO
Viola walteri House	Unresolved		WCSP (in review)
Viola walteri var. appalachiensis (L.K. Henry) L.E. McKinney	Unresolved		TRO
Viola wansanensis Y.N.Lee	Unresolved		WCSP (in review)
Viola watsonii Greene	Unresolved		WCSP (in review)
Viola × watsonii Druce	Unresolved		WCSP (in review)
Viola weberbaueri W. Becker	Accepted		TRO
Viola websteri Hemsl.	Accepted		TRO
Viola weddellii W. Becker	Synonym		TRO
Viola weibelii J.F. Macbr.	Accepted		TRO
Viola weinhartii W.Becker	Unresolved		WCSP (in review)
Viola weixiensis Ching J. Wang	Synonym		TRO
Viola werdermannii W.Becker	Unresolved		WCSP (in review)
Viola wettsteinii K.Richt.	Unresolved		WCSP (in review)
Viola wichurae Nakai	Unresolved		WCSP (in review)
Viola wiedemannii Boiss.	Unresolved		WCSP (in review)
Viola wiesbauriana Dichtl	Unresolved		WCSP (in review)
Viola × wiesbaurii Sabr. ex Nyman	Unresolved		WCSP (in review)
Viola × wiesbaurii Sabr.	Unresolved		WCSP (in review)
Viola wightiana Wall.	Unresolved		WCSP (in review)
Viola × wilczekiana Beauverd	Unresolved		WCSP (in review)
Viola × wilhelmii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola × wilibaldii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola willkommii Tepl.	Unresolved		WCSP (in review)
Viola willkommii R.Roem. ex Willk.	Unresolved		WCSP (in review)
Viola wilmattae A.Nelson	Unresolved		WCSP (in review)
Viola wilsonii W. Becker	Synonym		TRO
Viola × wittrockiana Gams	Unresolved		WCSP (in review)
Viola × wittrockiana Koppert	Unresolved		WCSP (in review)
Viola wittrockiana Gams ex Nauenb. & Buttler	Unresolved		WCSP (in review)
Viola wolffiana W.Becker	Unresolved		WCSP (in review)
Viola woosanensis Y.N.Lee & J.Kim	Unresolved		WCSP (in review)
Viola woroschilovii Bezd.	Unresolved		WCSP (in review)
Viola wrightiana Watt	Unresolved		WCSP (in review)
Viola × wujekii H.E.Ballard	Unresolved		WCSP (in review)
Viola × wychensis Kloos	Unresolved		WCSP (in review)
Viola xanthopetala Nakai	Synonym		TRO
Viola xylorrhiza Suksd.	Unresolved		WCSP (in review)
Viola yakusimana Nakai	Unresolved		WCSP (in review)
Viola yamatsutae Ishid. ex Kitag.	Synonym		TRO
Viola yatabei Makino	Unresolved		WCSP (in review)
Viola yazawana Makino	Unresolved		WCSP (in review)
Viola yedoensis Makino	Synonym		TRO
Viola yedoensis f. candida Kitag.	Synonym		TRO
Viola yedoensis f. intermedia Kitag.	Synonym		TRO
Viola yedoensis var. pseudojaponica (Nakai) T. Hashim.	Synonym		TRO
Viola yezoensis Maxim.	Accepted		TRO
Viola yezoensis var. hebeiensis (J.W. Wang & T.G. Ma) J.W. Wang & J. Yang	Synonym		TRO
Viola yildirimlii Dinç & Bagci	Unresolved		WCSP (in review)
Viola yubariana Nakai	Unresolved		WCSP (in review)
Viola yunnanensis W. Becker & H. Boissieu	Accepted		TRO
Viola yunnanfuensis W. Becker	Accepted		TRO
Viola × yurii Vl.V.Nikitin	Unresolved		WCSP (in review)
Viola yuzufelensis A.P.Khokhr.	Unresolved		WCSP (in review)
Viola zahnii Benz	Unresolved		WCSP (in review)
Viola × zapalowiczii Zmuda	Unresolved		WCSP (in review)
Viola zarencznyi Zapal.	Unresolved		WCSP (in review)
Viola zongia Tul.	Synonym		TRO
Viola × zophodes K.R.Thiele & Prober	Unresolved		WCSP (in review)
Viola zoysii Wulfen	Unresolved		WCSP (in review)