Specie di Viola
# Specie di Viola

Elenco delle specie del genere Viola:

## A

* Viola abbreviata J.M.Watson & A.R.Flores
* Viola abulensis Fern.Casado & Nava
* Viola abyssinica Steud. ex Oliv.
* Viola acanthophylla Leyb. ex Reiche
* Viola accrescens Klokov
* Viola acrocerauniensis Erben
* Viola acuminata Ledeb.
* Viola acutifolia (Kar. & Kir.) W.Becker
* Viola adenothrix Hayata
* Viola × adriatica Freyn
* Viola × adulterina Godr.
* Viola adunca Sm.
* Viola aduncoides Á.Löve & D.Löve
* Viola aethnensis (DC.) Strobl
* Viola aetolica Boiss. & Heldr.
* Viola affinis Leconte
* Viola aizoon Reiche
* Viola alaica Vved.
* Viola alba Besser
* Viola albanica Halácsy
* Viola albida Palib.
* Viola × albimaritima Vl.V.Nikitin
* Viola × albovii Vl.V.Nikitin
* Viola alburnica Ricceri & Moraldo
* Viola alexandrowiana (W.Becker) Juz.
* Viola alexejana Kamelin & Junussov
* Viola allchariensis Beck
* Viola alliariifolia Nakai
* Viola allochroa Botsch.
* Viola alpina Jacq.
* Viola altaica Ker Gawl.
* Viola amamiana Hatus.
* Viola ambigua Waldst. & Kit.
* Viola amiatina Ricceri & Moraldo
* Viola amurica W.Becker
* Viola anagae Gilli
* Viola angkae Craib
* Viola angustifolia Phil.
* Viola anitae J.M.Watson
* Viola annamensis Baker f.
* Viola appalachiensis L.K.Henry
* Viola araucaniae W.Becker
* Viola arborescens L.
* Viola argentina W.Becker
* Viola arguta Humb. & Bonpl. ex Schult.
* Viola arsenica Beck
* Viola arvensis Murray
* Viola athois W.Becker
* Viola atropurpurea Leyb.
* Viola aurantiaca Leyb.
* Viola aurata Phil.
* Viola auricolor Skottsb.
* Viola auriculata Leyb.
* Viola austrosinensis Y.S.Chen & Q.E.Yang
* Viola × awagatakensis T.Yamaz., I.Ito & Ageishi

## B

* Viola × bachtschisaraensis Vl.V.Nikitin
* Viola bakeri Greene
* Viola balansae Gagnep.
* Viola balcanica Delip.
* Viola bangii Rusby
* Viola banksii K.R.Thiele & Prober
* Viola baoshanensis W.S.Shu, W.Liu & C.Y.Lan
* Viola barhalensis G.Knoche & Marcussen
* Viola barkalovii Bezd.
* Viola barroetana W.Schaffn. ex Hemsl.
* Viola × bavarica Schrank
* Viola baxteri House
* Viola beamanii Calderón
* Viola beati J.M.Watson & A.R.Flores
* Viola beckeriana J.M.Watson & A.R.Flores
* Viola beckiana Fiala ex Beck
* Viola beckwithii Torr. & A.Gray
* Viola belophylla Boissieu
* Viola bertolonii Pio
* Viola betonicifolia Sm.
* Viola bezdelevae Vorosch.
* Viola bhutanica H.Hara
* Viola biflora L.
* Viola binayensis Okamoto & K.Ueda
* Viola × bissellii House
* Viola bissetii Maxim.
* Viola blanda Willd.
* Viola blandiformis Nakai
* Viola × blaxlandiae J.M.Watson & A.R.Flores
* Viola bocquetiana Yild.
* Viola boissieuana Makino
* Viola boliviana Britton
* Viola brachyceras Turcz.
* Viola brachypetala Gay
* Viola brachyphylla W.Becker
* Viola × braunii Borbás
* Viola breviflora Jungsim Lee & M.Kim
* Viola brevistipulata (Franch. & Sav.) W.Becker
* Viola bridgesii Britton
* Viola brittoniana Pollard
* Viola bubanii Timb.-Lagr.
* Viola bulbosa Maxim.
* Viola × burnatii Gremli
* Viola bustillosia Gay

## C

* Viola calabra (A.Terracc.) Ricceri & Moraldo
* Viola calcarata L.
* Viola calchaquiensis W.Becker
* Viola calcicola R.A.McCauley & H.E.Ballard
* Viola caleyana G.Don
* Viola cameleo H.Boissieu
* Viola canadensis L.
* Viola canescens Wall.
* Viola canina L.
* Viola cano-barbata Leyb.
* Viola capillaris Pers.
* Viola caspia (Rupr.) Freyn
* Viola cassinensis Strobl
* Viola caucasica Kolen. ex Rupr.
* Viola cavillieri W.Becker
* Viola cazorlensis Gand.
* Viola cenisia L.
* Viola cephalonica Bornm.
* Viola cerasifolia A.St.-Hil.
* Viola cervatiana Ricceri & Moraldo
* Viola chaerophylloides (Regel) W.Becker
* Viola chalcosperma Brainerd
* Viola chamaedrys Leyb.
* Viola chamissoniana Ging.
* Viola changii J.S.Zhou & F.W.Xing
* Viola charlestonensis M.S.Baker & J.C.Clausen
* Viola chassanica Kork.
* Viola cheeseana J.M.Watson
* Viola cheiranthifolia Bonpl.
* Viola chejuensis Y.N.Lee & Y.C.Oh
* Viola chelmea Boiss.
* Viola chiapasiensis W.Becker
* Viola × chrysantha Schrad. ex Rchb.
* Viola cilentana Ricceri & Moraldo
* Viola cilicica Contandr. & Quézel
* Viola cinerea Boiss.
* Viola clauseniana M.S.Baker
* Viola cleistogamoides (L.G.Adams) Seppelt
* Viola cochranei H.E.Ballard
* Viola collina Besser
* Viola columnaris Skottsb.
* Viola comberi W.Becker
* Viola commersonii DC. ex Ging.
* Viola communis Pollard
* Viola comollia Massara
* Viola concordifolia C.J.Wang
* Viola confertifolia C.C.Chang
* Viola congesta Gillies ex Hook. & Arn.
* Viola × conjugens Greene
* Viola × consobrina House
* Viola × consocia House
* Viola × contempta Jord.
* Viola × cooperrideri H.E.Ballard
* Viola × cordifolia (Nutt.) Schwein.
* Viola cornuta L.
* Viola coronifera W.Becker
* Viola corralensis Phil.
* Viola corsica Nyman
* Viola cotyledon Ging.
* Viola crassifolia Fenzl
* Viola crassiuscula Bory
* Viola cuatrecasasii L.B.Sm. & A.Fernández
* Viola cucullata Aiton
* Viola cuicochensis Hieron.
* Viola culminis F.Fen. & Moraldo
* Viola cuneata S.Watson
* Viola cunninghamii Hook.f.
* Viola curicoensis W.Becker
* Viola curtisiae (L.G.Adams) K.R.Thiele
* Viola cuspidifolia W.Becker
* Viola cyathiformis W.Becker
* Viola czemalensis Zuev

## D

* Viola dacica Borbás
* Viola dactyloides Schult.
* Viola dalatensis Gagnep.
* Viola dandoisiorum J.M.Watson & A.R.Flores
* Viola danielae Pînzaru
* Viola dasyphylla W.Becker
* Viola davidii Franch.
* Viola × davisii House
* Viola decipiens Reiche
* Viola declinata Waldst. & Kit.
* Viola decumbens L.f.
* Viola dehnhardtii Ten.
* Viola delavayi Franch.
* Viola delphinantha Boiss.
* Viola demetria Prolongo ex Boiss.
* Viola denizliensis O.D.Dü?en, Göktürk, U.Sarpkaya & B.Gürcan
* Viola diamantiaca Nakai
* Viola dichroa Boiss.
* Viola diffusa Ging.
* Viola dimorphophylla Y.S.Chen & Q.E.Yang
* Viola dirimliensis Blaxland
* Viola dirphya Tiniakou
* Viola disjuncta W.Becker
* Viola dissecta Ledeb.
* Viola diversifolia (DC.) W.Becker
* Viola doerfleri Degen
* Viola × doii Taken.
* Viola dombeyana DC. ex Ging.
* Viola domeikoana Gay
* Viola domestica E.P.Bicknell
* Viola douglasii Steud.
* Viola dubyana Burnat ex Gremli
* Viola duclouxii W.Becker
* Viola dukadjinica W.Becker & Koanin
* Viola dyris Maire

## E

* Viola × eclipes H.E.Ballard
* Viola ecuadorensis W.Becker
* Viola edulis Spach
* Viola egglestonii Brainerd
* Viola eizanensis (Makino) Makino
* Viola × eizasieboldii Sugim. ex T.Shimizu
* Viola elatior Fr.
* Viola elegantula Schott
* Viola emarginata (Nutt.) Leconte
* Viola eminens K.R.Thiele & Prober
* Viola eminii (Engl.) R.E.Fr.
* Viola enmae P.Gonzáles
* Viola epipsila Ledeb.
* Viola epipsiloides Á.Löve & D.Löve
* Viola epirota (Halácsy) Raus
* Viola eriocarpa Schwein.
* Viola ermenekensis Yild. & Dinç
* Viola escarapela J.M.Watson & A.R.Flores
* Viola escondidaensis W.Becker
* Viola etrusca Erben
* Viola euboea (Halácsy) Halácsy
* Viola eugeniae Parl.
* Viola evae Hieron. ex W.Becker
* Viola eximia Formánek
* Viola exsul J.M.Watson & A.R.Flores

## F

* Viola falconeri Hook.f. & Thomson
* Viola farkasiana J.M.Watson & A.R.Flores
* Viola faurieana W.Becker
* Viola × fennica F.Nyl.
* Viola ferdinandea Ricceri & Moraldo
* Viola ferrarinii Moraldo & Ricceri
* Viola ferreyrae P.Gonzáles
* Viola filicaulis Hook.f.
* Viola × filicetorum Greene
* Viola fimbriatula Sm.
* Viola fischeri W.Becker
* Viola flagelliformis Hemsl.
* Viola flavicans Wedd.
* Viola flettii Piper
* Viola floridana Brainerd
* Viola flos-idae Hieron.
* Viola fluehmannii Phil.
* Viola formosana Hayata
* Viola forrestiana W.Becker
* Viola forskaalii Greuter
* Viola fragrans Sieber
* Viola frank-smithii N.H.Holmgren
* Viola friderici W.Becker
* Viola frigida Phil.
* Viola frondosa (Velen.) Velen.
* Viola frusinatae Ricceri & Moraldo
* Viola fruticosa W.Becker
* Viola × fujisanensis S.Watan.
* Viola fuscifolia W.Becker
* Viola fuscoviolacea (L.G.Adams) T.A.James

## G

* Viola galeanaensis M.S.Baker
* Viola × ganeschinii Vl.V.Nikitin
* Viola ganiatsasii Erben
* Viola gaviolii Ricceri & Moraldo
* Viola gelida J.M.Watson, M.P.Cárdenas & A.R.Flores
* Viola germainii Sparre
* Viola glabella Nutt.
* Viola glaberrima (Ging. ex Chapm.) House
* Viola glandularis H.E.Ballard & P.M.Jørg.
* Viola glechomoides Leyb.
* Viola gmeliniana Schult.
* Viola godoyae Phil.
* Viola × gotlandica W.Becker
* Viola gracilis Sm.
* Viola gracillima A.St.-Hil.
* Viola grahamii Benth.
* Viola grandisepala W.Becker
* Viola granulosa Wedd.
* Viola grayi Franch. & Sav.
* Viola × greatrexii Nakai & F.Maek.
* Viola grisebachiana Vis.
* Viola × grubovii Vl.V.Nikitin
* Viola grypoceras A.Gray
* Viola guadalupensis A.M.Powell & Wauer
* Viola guangzhouensis A.Q.Dong, J.S.Zhou & F.W.Xing
* Viola guatemalensis W.Becker
* Viola guaxarensis M.Marrero, Docoito Díaz & Martín Esquivel

## H

* Viola × halacsyana Degen & Dörfl.
* Viola hallii A.Gray
* Viola hamiltoniana D.Don
* Viola hancockii W.Becker
* Viola hastata Michx.
* Viola × haynaldii Wiesb.
* Viola hederacea Labill.
* Viola hediniana W.Becker
* Viola heldreichiana Boiss.
* Viola helena C.N.Forbes & Lydgate
* Viola hemsleyana Calderón
* Viola henriquesii (Willk. ex Cout.) W.Becker
* Viola henryi H.Boissieu
* Viola herzogii (W.Becker) Bornm.
* Viola × heterocarpa Borbás
* Viola hieronymi W.Becker
* Viola hillii W.Becker
* Viola hirsutula Brainerd
* Viola hirta L.
* Viola × hirtiformis Wiesb.
* Viola hirtipes S.Moore
* Viola hispida Lam.
* Viola hissarica Juz.
* Viola × hollickii House
* Viola hondoensis W.Becker & H.Boissieu
* Viola hookeri Thomson
* Viola hookeriana Kunth
* Viola howellii A.Gray
* Viola huesoensis Martic.
* Viola huidobrii Gay
* Viola hultenii W.Becker
* Viola humilis Kunth
* Viola × hungarica Degen & Sabr.
* Viola hybanthoides W.B.Liao & Q.Fan
* Viola hymettia Boiss. & Heldr.
* Viola × hyrcanica Vl.V.Nikitin

## I

* Viola × ibukiana Makino
* Viola × igoschinae Vl.V.Nikitin
* Viola ilvensis (W.Becker) Arrigoni
* Viola improcera L.G.Adams
* Viola incisa Turcz.
* Viola × incissecta Vl.V.Nikitin
* Viola incognita Brainerd
* Viola inconspicua Blume
* Viola indica W.Becker
* Viola ingolensis Elisafenko
* Viola × insessa House
* Viola × insolita House
* Viola × interjecta Borbás
* Viola × intersita Beck
* Viola ircutiana Turcz.
* Viola irinae Zolot.
* Viola isaurica Contandr. & Quézel
* Viola × iselensis W.Becker
* Viola isopetala Juz.
* Viola ivonis Erben
* Viola iwagawae Makino

## J

* Viola jalapaensis W.Becker
* Viola jangiensis W.Becker
* Viola japonica Langsd. ex Ging.
* Viola jaubertiana Marès & Vigin.
* Viola javanica W.Becker
* Viola jeniseensis Zuev
* Viola × jindoensis M.Kim
* Viola jinggangshanensis Z.L.Ning & J.P.Liao
* Viola jizushanensis S.H.Huang
* Viola × joannis-wagneri Kárpáti
* Viola johnstonii W.Becker
* Viola jooi Janka
* Viola jordanii Hanry
* Viola × juzepczukii Vl.V.Nikitin

## K

* Viola kamtschadalorum W.Becker & Hultén
* Viola × karakulensis Vl.V.Nikitin & O.Baranova
* Viola karlreicheana Sanso, M.Seo & Xifreda
* Viola kauaensis A.Gray
* Viola keiskei Miq.
* Viola kermesina W.Becker
* Viola × kerneri Wiesb.
* Viola × kisoana Nakai
* Viola kitaibeliana Schult.
* Viola kitamiana Nakai
* Viola kizildaghensis Dinç & Yild.
* Viola kjellbergii Melch.
* Viola × klingeana Ronniger
* Viola kopaonikensis Pancic ex Tomovic & Niketic
* Viola kosanensis Hayata
* Viola kosaninii (Degen) Hayek
* Viola × kozo-poljanskii Grosset
* Viola × krascheninnikoviorum Vl.V.Nikitin
* Viola kunawarensis Royle
* Viola kusanoana Makino
* Viola kusnezowiana W.Becker

## L

* Viola labradorica Schrank
* Viola × lacmonica Hausskn.
* Viola lactea Sm.
* Viola lactiflora Nakai
* Viola lainzii P.Monts.
* Viola lanaiensis W.Becker
* Viola lanceolata L.
* Viola langeana Valentine
* Viola langloisii Greene
* Viola langsdorffii Fisch. ex Ging.
* Viola lanifera W.Becker
* Viola laricicola Marcussen
* Viola latistipula Hemsl.
* Viola latiuscula Greene
* Viola lehmannii W.Becker
* Viola leyboldiana Phil.
* Viola libanotica Boiss.
* Viola lilliputana Iltis & H.E.Ballard
* Viola lilloana W.Becker
* Viola limbarae (Merxm. & W.Lippert) Arrigoni
* Viola lithion N.H.Holmgren & P.K.Holmgren
* Viola × litoralis Spreng.
* Viola livonica Vl.V.Nikitin
* Viola llullaillacoensis W.Becker
* Viola lobata Benth.
* Viola longipetiolata Ricceri & Moraldo
* Viola lovelliana Brainerd
* Viola lucens W.Becker
* Viola × luciae Skottsb.
* Viola lungtungensis S.S.Ying
* Viola lutea Huds.
* Viola × lutzii E.G.Camus
* Viola lyallii Hook.f.

## M

* Viola macloskeyi F.E.Lloyd
* Viola macroceras Bunge
* Viola maculata Cav.
* Viola magellanica G.Forst.
* Viola magellensis Porta & Rigo ex Strobl
* Viola magnifica C.J.Wang & X.D.Wang
* Viola majchurensis Pissjauk.
* Viola × malteana House
* Viola mandonii W.Becker
* Viola mandshurica W.Becker
* Viola maoershanensis Y.S.Chen & Q.E.Yang
* Viola marcelorosasii J.M.Watson & A.R.Flores
* Viola × markgrafii W.Becker
* Viola maroccana (Maire) Maire
* Viola × matczkasensis Vl.V.Nikitin
* Viola mauritii Tepl.
* Viola maviensis H.Mann
* Viola maximowicziana Makino
* Viola maymanica Grey-Wilson
* Viola mearnsii Merr.
* Viola × melissifolia Greene
* Viola membranacea W.Becker
* Viola × menitzkii Vl.V.Nikitin
* Viola mercurii Orph. ex Halácsy
* Viola merrilliana W.Becker
* Viola merxmuelleri Erben
* Viola miaolingensis Y.S.Chen
* Viola micranthella Wedd.
* Viola microcentra W.Becker
* Viola microphylla Phil.
* Viola milanae Vl.V.Nikitin
* Viola × militaris Savouré
* Viola minuscula Greene
* Viola minuta M.Bieb.
* Viola minutiflora Phil.
* Viola mirabilis L.
* Viola missouriensis Greene
* Viola × mixta A.Kern.
* Viola × miyajiana Koidz.
* Viola modesta Fenzl
* Viola molisana Ricceri & Moraldo
* Viola × mollicula House
* Viola mongolica Franch.
* Viola montagnei Gay
* Viola montcaunica Pau
* Viola moupinensis Franch.
* Viola mucronulifera Hand.-Mazz.
* Viola muehldorfii Kiss
* Viola × mulfordiae Pollard
* Viola muliensis Y.S.Chen & Q.E.Yang
* Viola munbyana Boiss. & Reut.
* Viola murronensis Ricceri & Moraldo
* Viola muscoides Phil.

## N

* Viola nagasawae Makino & Hayata
* Viola × najadum Wein
* Viola nana (DC. ex Ging.) Le Jol.
* Viola nanlingensis J.S.Zhou & F.W.Xing
* Viola nannae R.E.Fr.
* Viola nannei Pol.
* Viola × napae House
* Viola nebrodensis C.Presl
* Viola × neglectiformis Vl.V.Nikitin
* Viola nemoralis Kütz.
* Viola nephrophylla Greene
* Viola niederleinii W.Becker
* Viola × nikitinii Vasjukov
* Viola nitida Y.S.Chen & Q.E.Yang
* Viola nobilis W.Becker
* Viola × notabilis E.P.Bicknell
* Viola novae-angliae House
* Viola nubigena Leyb.
* Viola nuda W.Becker
* Viola nujiangensis Y.S.Chen & X.H.Jin
* Viola nummulariifolia Vill.
* Viola nuttallii Pursh

## O

* Viola oahuensis C.N.Forbes
* Viola oblonga Blatt.
* Viola obtusa (Makino) Makino
* Viola × obtusoacuminata T.Hashim. ex T.Shimizu
* Viola × obtusogrypoceras Makino
* Viola occulta Lehm.
* Viola ocellata Torr. & A.Gray
* Viola odontocalycina Boiss.
* Viola odorata L.
* Viola × okuharae F.Maek. ex T.Shimizu
* Viola × olimpia Beggiat.
* Viola orbelica Pancic
* Viola orbiculata (A.Gray) Geyer ex B.D.Jacks.
* Viola oreades M.Bieb.
* Viola orientalis (Maxim.) W.Becker
* Viola orphanidis Boiss.
* Viola orthoceras Ledeb.
* Viola ovalleana Phil.
* Viola ovato-oblonga (Miq.) Makino
* Viola oxyodontis H.E.Ballard

## P

* Viola pachyrrhiza Boiss. & Hohen.
* Viola pachysoma M.Sheader & J.M.Watson
* Viola pacifica Juz.
* Viola painteri Rose & House
* Viola palatina Y.N.Lee
* Viola pallascaensis W.Becker
* Viola palmata L.
* Viola palmensis (Webb & Berthel.) Sauer
* Viola palustris L.
* Viola papuana W.Becker & Pulle
* Viola paradoxa Lowe
* Viola parnonia Kit Tan, Sfikas & Vold
* Viola parvula Tineo
* Viola patrinii Ging.
* Viola pectinata E.P.Bicknell
* Viola pedata L.
* Viola pedatifida G.Don
* Viola pedunculata Torr. & A.Gray
* Viola pekinensis (Regel) W.Becker
* Viola pendulicarpa W.Becker
* Viola pentadactyla Fenzl
* Viola perinensis W.Becker
* Viola × perplexa Gremli
* Viola perpusilla Boissieu
* Viola perreniformis (L.G.Adams) R.J.Little & Leiper
* Viola phalacrocarpa Maxim.
* Viola philippiana Greene
* Viola philippica Cav.
* Viola phitosiana Erben
* Viola pilosa Blume
* Viola pinetorum Greene
* Viola pinnata L.
* Viola pitouchaoensis S.S.Ying
* Viola placida W.Becker
* Viola × pluricaulis Borbás
* Viola pluviae Marcussen, H.E.Ballard & Blaxland
* Viola × poelliana Murr
* Viola poetica Boiss. & Spruner
* Viola polycephala H.E.Ballard & P.M.Jørg.
* Viola polypoda Turcz.
* Viola × popovae Vl.V.Nikitin
* Viola × populifolia Greene
* Viola × porphyrea R.Uechtr.
* Viola portalesia Gay
* Viola × porteriana Pollard
* Viola portulacea Leyb.
* Viola praemorsa Douglas
* Viola primorskajensis (W.Becker) Vorosch.
* Viola primulifolia L.
* Viola principis Boissieu
* Viola prionantha Bunge
* Viola producta W.Becker
* Viola psammophila Phil.
* Viola pseudaetolica Tomovic, Melovski & Niketic
* Viola pseudogracilis (A.Terracc.) Strobl ex Degen & Dörfl.
* Viola pseudograeca Erben
* Viola × pseudomakinoi M.Mizush. ex T.Shimizu
* Viola pubescens Aiton
* Viola pulvinata Reiche
* Viola pumila Chaix
* Viola purpurea Kellogg
* Viola pusilla Poepp.
* Viola pusillima Wedd.
* Viola pygmaea Juss. ex Poir.
* Viola × pynzarii Vl.V.Nikitin
* Viola pyrenaica Ramond ex DC.

## Q

* Viola quercetorum M.S.Baker & J.C.Clausen

## R

* Viola raddeana Regel
* Viola rafinesquei Greene
* Viola ramiflora K.O.Yoo
* Viola ramosiana W.Becker
* Viola rauliniana Erben
* Viola × raunsiensis W.Becker & Koanin
* Viola rausii Erben
* Viola × redacta House
* Viola regina J.M.Watson & A.R.Flores
* Viola reichei Skottsb. ex Macloskie
* Viola reichenbachiana Jord. ex Boreau
* Viola renifolia A.Gray
* Viola replicata W.Becker
* Viola × reschetnikovae Vl.V.Nikitin
* Viola retusa Greene
* Viola rheophila Okamoto
* Viola rhodopeia W.Becker
* Viola rhombifolia Leyb.
* Viola × ritschliana W.Becker
* Viola riviniana Rchb.
* Viola × robinsoniana House
* Viola roccabrunensis Espeut
* Viola rodriguezii W.Becker
* Viola roigii Rossow
* Viola rosacea Brainerd
* Viola rossii Hemsl.
* Viola rossowiana J.M.Watson & A.R.Flores
* Viola rostrata Muhl. ex Pursh
* Viola rosulata Poepp. & Endl.
* Viola rotundifolia Michx.
* Viola rubella Cav.
* Viola rubromarginata J.M.Watson & A.R.Flores
* Viola rudolfii Vl.V.Nikitin
* Viola rudolphii Sparre
* Viola rugosa Phil. ex W.Becker
* Viola rugulosa Greene
* Viola × rupestriformis Vl.V.Nikitin
* Viola rupestris F.W.Schmidt
* Viola rupicola Elmer

## S

* Viola saccata Melch.
* Viola sacchalinensis H.Boissieu
* Viola sacculus Skottsb.
* Viola sagittata Aiton
* Viola samothracica (Degen) Raus
* Viola sandrasea Melch.
* Viola santiagonensis W.Becker
* Viola savatieri Makino
* Viola saxifraga Maire
* Viola × scabra F.Braun
* Viola scandens Humb. & Bonpl. ex Schult.
* Viola schachimardanica Khalk.
* Viola schariensis Erben
* Viola × schauloi Vl.V.Nikitin
* Viola scorpiuroides Coss.
* Viola seleriana W.Becker
* Viola selkirkii Pursh ex Goldie
* Viola sempervirens Greene
* Viola sempervivum Gay
* Viola × semseyana Borbás
* Viola senzanensis Hayata
* Viola septemloba Leconte
* Viola septentrionalis Greene
* Viola sequeirae Capelo, R.Jardim, J.C.Costa, Lousã & Rivas Mart.
* Viola × sermenika Formánek
* Viola serpentinicola Mig.F.Salas
* Viola serresiana Erben
* Viola sfikasiana Erben
* Viola shaoyoukengensis S.S.Ying
* Viola sheltonii Torr.
* Viola shikokiana Makino
* Viola shinchikuensis Yamam.
* Viola sieberiana Spreng.
* Viola sieboldii Maxim.
* Viola sieheana W.Becker
* Viola sikkimensis W.Becker
* Viola silicestris K.R.Thiele & Prober
* Viola singularis J.M.Watson & A.R.Flores
* Viola sintenisii W.Becker
* Viola sirinica Ricceri & Moraldo
* Viola × skofitziana Wiesb.
* Viola skottsbergiana W.Becker
* Viola somchetica K.Koch
* Viola sororia Willd.
* Viola spathulata Willd. ex Schult.
* Viola speciosa Pant.
* Viola spegazzinii W.Becker
* Viola sphaerocarpa W.Becker
* Viola stagnina Kit. ex Schult.
* Viola steinbachii W.Becker
* Viola stewardiana W.Becker
* Viola stipularis Sw.
* Viola stojanowii W.Becker
* Viola stoloniflora Yokota & Higa
* Viola stoneana House
* Viola striata Aiton
* Viola striatella H.Boissieu
* Viola striis-notata (J.Wagner) Merxm. & W.Lippert
* Viola stuebelii Hieron.
* Viola suavis M.Bieb.
* Viola × subaffinis House
* Viola subandina J.M.Watson
* Viola subasica (Fiori) Ricceri & Moraldo
* Viola subatlantica (Maire) Ibn Tattou
* Viola subdimidiata A.St.-Hil.
* Viola × sublanceolata House
* Viola subsinuata (Greene) Greene
* Viola × sukaczewii Vl.V.Nikitin
* Viola sumatrana Miq.
* Viola szetschwanensis W.Becker & H.Boissieu

## T

* Viola taltalensis W.Becker
* Viola tanaitica Grosset
* Viola tarbagataica Klokov
* Viola tashiroi Makino
* Viola tectiflora W.Becker
* Viola tenuipes Pollard
* Viola tenuissima C.C.Chang
* Viola teplouchovii Juz.
* Viola teshioensis Miyabe & Tatew.
* Viola thasia W.Becker
* Viola thianschanica Maxim.
* Viola thibaudieri Franch. & Sav.
* Viola thomasiana Songeon & E.P.Perrier
* Viola thomsonii Oudem.
* Viola thymifolia Britton
* Viola tienschiensis W.Becker
* Viola × tigirekica Vl.V.Nikitin
* Viola tineorum Erben & Raimondo
* Viola tokubuchiana Makino
* Viola tomentosa M.S.Baker & J.C.Clausen
* Viola × torslundensis W.Becker
* Viola tovarii P.Gonzáles & Molina-Alor
* Viola triangulifolia W.Becker
* Viola trichopetala C.C.Chang
* Viola trichosepala (W.Becker) Juz.
* Viola tricolor L.
* Viola tridentata Sm.
* Viola triflabellata W.Becker
* Viola trinervata (Howell) Howell ex A.Gray
* Viola tripartita Elliott
* Viola trochlearis J.M.Watson & A.R.Flores
* Viola truncata Meyen
* Viola turkestanica Regel & Schmalh.
* Viola turritella J.M.Watson & A.R.Flores
* Viola × tuvinica Vl.V.Nikitin
* Viola × tzvelevii Vl.V.Nikitin

## U

* Viola ucriana Erben & Raimondo
* Viola × uechtritziana Borbás
* Viola uliginosa Besser
* Viola umbraticola Kunth
* Viola umphangensis S.Nansai, Srisanga & Suwanph.
* Viola uniflora L.
* Viola uniquissima J.M.Watson & A.R.Flores
* Viola unwinii W.Becker
* Viola urophylla Franch.
* Viola utahensis M.S.Baker & J.C.Clausen
* Viola utchinensis Koidz.

## V

* Viola vadimii Vl.V.Nikitin
* Viola vaginata Maxim.
* Viola valderia All.
* Viola vallenarensis W.Becker
* Viola vallicola A.Nelson
* Viola vanroyenii H.St.John
* Viola variegata Fisch. ex Link
* Viola vectoris Ricceri & Moraldo
* Viola velutina Formánek
* Viola veronicifolia Planch. & Linden
* Viola viarum Pollard
* Viola × viatkensis Vl.V.Nikitin
* Viola × villaquensis Benz
* Viola villosa Walter
* Viola × vilnaensis W.Becker
* Viola × vindobonensis Wiesb.
* Viola violacea Makino
* Viola vittata Greene
* Viola volcanica Gillies ex Hook. & Arn.
* Viola voliotisii Erben
* Viola vorobievii Bezd.
* Viola vourinensis Erben
* Viola vulturis Ricceri & Moraldo

## W

* Viola wailenalenae (Rock) Skottsb.
* Viola wallichiana Ging.
* Viola walteri House
* Viola wansanensis Y.N.Lee
* Viola weberbaueri W.Becker
* Viola websteri Hemsl.
* Viola weibelii J.F.Macbr.
* Viola werdermannii W.Becker
* Viola × wilczekiana Beauverd
* Viola × wilhelmii Vl.V.Nikitin
* Viola × wilibaldii Vl.V.Nikitin
* Viola willkommii R.Roem. ex Willk.
* Viola woosanensis Y.N.Lee & J.Kim
* Viola woroschilovii Bezd.
* Viola × wujekii H.E.Ballard
* Viola wulingensis S.S.Ying

## X

* Viola xanthopotamica J.M.Watson & A.R.Flores

## Y

* Viola yazawana Makino
* Viola yezoensis Maxim.
* Viola yildirimlii Dinç & Bagci
* Viola yunnanensis W.Becker & H.Boissieu
* Viola yunnanfuensis W.Becker
* Viola × yurii Vl.V.Nikitin
* Viola yuzufelensis A.P.Khokhr.

## Z

* Viola × zophodes K.R.Thiele & Prober
* Viola × zwienenii J.M.Watson & A.R.Flores
