List of Begonia species

The following species are recognised in the genus Begonia:

A

 * Begonia abbottii Urb.
 * Begonia abdullahpieei Kiew
 * Begonia aberrans Irmsch.
 * Begonia aborensis Dunn
 * Begonia acaulis Merr. & L.M.Perry
 * Begonia acclivis Coyle
 * Begonia acerifolia Kunth
 * Begonia aceroides Irmsch.
 * Begonia acetosa Vell.
 * Begonia acetosella Craib
 * Begonia acida Vell.
 * Begonia aconitifolia A.DC.
 * Begonia acuminatissima Merr.
 * Begonia acutifolia Jacq.
 * Begonia acutiloba Liebm.
 * Begonia acutitepala K.Y.Guan & D.K.Tian
 * Begonia adamsensis Magtoto & Rubite
 * Begonia adenodes Irmsch.
 * Begonia adenopoda Lem.
 * Begonia adenostegia Stapf
 * Begonia admirabilis Brade
 * Begonia adpressa Sosef
 * Begonia adscendens C.B.Clarke
 * Begonia aenea Linden & André
 * Begonia aequata A.Gray
 * Begonia aequatoguineensis Sosef & Nguema
 * Begonia aequatorialis L.B.Sm. & B.G.Schub.
 * Begonia aequilateralis Irmsch.
 * Begonia aeranthos L.B.Sm. & B.G.Schub.
 * Begonia affinis Merr.
 * Begonia aggeloptera N.Hallé
 * Begonia aguiabrancensis L.Kollmann
 * Begonia agusanensis Merr.
 * Begonia akaw Mansibang, Aumentado & Y.P.Ang
 * Begonia alba Merr.
 * Begonia albidula Brade
 * Begonia albobracteata Ridl.
 * Begonia albococcinea Hook.
 * Begonia albomaculata C.DC. ex Huber
 * Begonia × albopicta W.Bull
 * Begonia alcarrasica J.Sierra
 * Begonia alchemilloides A.DC.
 * Begonia algaia L.B.Sm. & Wassh.
 * Begonia alice-clarkae Ziesenh.
 * Begonia aliciae C.E.C.Fisch.
 * Begonia alicida C.B.Clarke
 * Begonia almedana Burt-Utley & Utley
 * Begonia alnifolia A.DC.
 * Begonia alpina L.B.Sm. & Wassh.
 * Begonia altamiroi Brade
 * Begonia altissima Ridl.
 * Begonia altoperuviana A.DC.
 * Begonia alvarezii Merr.
 * Begonia alveolata T.T.Yu
 * Begonia × amabilis Linden
 * Begonia amphioxus Sands
 * Begonia ampla Hook.f.
 * Begonia anaimalaiensis Bedd.
 * Begonia andamensis Parish ex C.B.Clarke
 * Begonia andersonii Kiew & S.Julia
 * Begonia andina Rusby
 * Begonia androrangensis Humbert
 * Begonia androturba Coyle
 * Begonia anemoniflora Irmsch.
 * Begonia angilogensis Merr.
 * Begonia angolensis Irmsch.
 * Begonia angraensis Brade
 * Begonia angularis Raddi
 * Begonia angulata Vell.
 * Begonia angustilimba Merr.
 * Begonia angustiloba A.DC.
 * Begonia anisoptera Merr.
 * Begonia anisosepala Hook.f.
 * Begonia anjuanensis Humbert ex Aymonin & Bosser
 * Begonia ankaranensis Humbert ex Aymonin & Bosser
 * Begonia annobonensis A.DC.
 * Begonia annulata K.Koch
 * Begonia anodifolia A.DC.
 * Begonia antaisaka Humbert
 * Begonia anthonyi Kiew
 * Begonia × antonietae Brade
 * Begonia antongilensis Humbert
 * Begonia antsingyensis Humbert ex Aymonin & Bosser
 * Begonia antsiranensis Aymonin & Bosser
 * Begonia apayaoensis Merr.
 * Begonia apparicioi Brade
 * Begonia aptera Blume
 * Begonia arachnoidea C.I Peng, Yan Liu & S.M.Ku
 * Begonia arborescens Raddi
 * Begonia arboreta Y.M.Shui
 * Begonia archboldiana Merr. & L.M.Perry
 * Begonia areolata Miq.
 * Begonia arfakensis (Gibbs) L.L.Forrest & Hollingsw.
 * Begonia argentea Linden
 * Begonia argenteomarginata Tebbitt
 * Begonia aridicaulis Ziesenh.
 * Begonia arnottiana (Wight) A.DC.
 * Begonia arrogans Irmsch.
 * Begonia articulata Irmsch.
 * Begonia artior Irmsch.
 * Begonia asperifolia Irmsch.
 * Begonia aspleniifolia Hook.f. ex A.DC.
 * Begonia assurgens Irmsch. ex Weberling
 * Begonia asteropyrifolia Y.M.Shui & W.H.Chen
 * Begonia asympeltata L.B.Sm. & Wassh.
 * Begonia atricha (Miq.) Miq. ex A.DC.
 * Begonia atroglandulosa Sosef
 * Begonia augustae Irmsch.
 * Begonia augustinei Hemsl.
 * Begonia aurantiflora C.I Peng, Yan Liu & S.M.Ku
 * Begonia auriculata Hook.f.
 * Begonia auritistipula Y.M.Shui & W.H.Chen
 * Begonia austroguangxiensis Y.M.Shui & W.H.Chen
 * Begonia austrotaiwanensis Y.K.Chen & C.I.Peng
 * Begonia awongii Sands
 * Begonia axillaris Ridl.
 * Begonia axillipara Ridl.
 * Begonia azuensis Urb. & Ekman

B

 * Begonia baccata Hook.f.
 * Begonia bagotiana Humbert ex Aymonin & Bosser
 * Begonia bahakensis Sands
 * Begonia bahiensis A.DC.
 * Begonia baik C.W.Lin & C.I Peng
 * Begonia bajik S.Julia & C.Y.Ling
 * Begonia balangcodiae Rubite, S.H.Liu & K.F.Chung
 * Begonia balansae C.DC.
 * Begonia balansana Gagnep.
 * Begonia baliensis Girm.
 * Begonia balmisiana Balmis
 * Begonia bamaensis Yan Liu & C.I Peng
 * Begonia banaoensis J.Sierra
 * Begonia bangii Kuntze
 * Begonia bangsamoro D.P.Buenavista
 * Begonia baramensis Merr.
 * Begonia barbellata Ridl.
 * Begonia barborkae Halda
 * Begonia barkeri Knowles & Westc.
 * Begonia barkleyana L.B.Sm.
 * Begonia baronii Baker
 * Begonia barrigae L.B.Sm. & B.G.Schub.
 * Begonia bartlettiana Merr. & L.M.Perry
 * Begonia bataiensis Kiew
 * Begonia batusangiensis Ardi & D.C.Thomas
 * Begonia baturongensis Kiew
 * Begonia baumannii Lemoine ex Wittm.
 * Begonia baviensis Gagnep.
 * Begonia beccariana Ridl.
 * Begonia beccarii Warb.
 * Begonia beddomei Hook.f.
 * Begonia beijnenii
 * Begonia bekakapensis C.Y.Ling & S.Julia
 * Begonia bekopakensis Aymonin & Bosser
 * Begonia bequaertii Robyns & Lawalrée
 * Begonia berhamanii Kiew
 * Begonia bernicei Aymard & G.A.Romero
 * Begonia bernieri A.DC.
 * Begonia beryllae Ridl.
 * Begonia besleriifolia Schott
 * Begonia betsimisaraka Humbert
 * Begonia bettinae Ziesenh.
 * Begonia bidentata Raddi
 * Begonia biflora T.C.Ku
 * Begonia bifolia Ridl.
 * Begonia bifurcata L.B.Sm. & B.G.Schub.
 * Begonia biguassuensis Brade
 * Begonia biliranensis Merr.
 * Begonia binuangensis Merr.
 * Begonia bipinnatifida J.J.Sm.
 * Begonia biserrata Lindl.
 * Begonia bissei J.Sierra
 * Begonia blancii M.Hughes & C.I Peng
 * Begonia bogneri Ziesenh.
 * Begonia boisiana Gagnep.
 * Begonia boissieri A.DC.
 * Begonia boiviniana A.DC.
 * Begonia boliviensis A.DC.
 * Begonia bolleana Urb. & Ekman
 * Begonia bolsteri Merr.
 * Begonia bonii Gagnep.
 * Begonia bonitoensis Brade
 * Begonia bonthainensis Hemsl.
 * Begonia bonus-henricus J.J.de Wilde
 * Begonia boraceiensis Handro
 * Begonia borneensis A.DC.
 * Begonia bosseri Keraudren
 * Begonia boucheana (Klotzsch) A.DC.
 * Begonia bouffordii C.I Peng
 * Begonia bowerae Ziesenh.
 * Begonia brachybotrys Merr. & L.M.Perry
 * Begonia brachyclada Urb. & Ekman
 * Begonia brachypoda O.E.Schulz
 * Begonia bracteata Jack
 * Begonia bracteosa A.DC.
 * Begonia bradei Irmsch.
 * Begonia brandbygeana L.B.Sm. & Wassh.
 * Begonia brandisiana Kurz
 * Begonia brassii Merr. & L.M.Perry
 * Begonia breedlovei Burt-Utley
 * Begonia brevibracteata Kupicha
 * Begonia brevicaulis A.DC.
 * Begonia brevicordata L.B.Sm. & B.G.Schub.
 * Begonia brevilobata Irmsch.
 * Begonia brevipedunculata Y.M.Shui
 * Begonia brevipes Merr.
 * Begonia brevipetala (A.DC.) Warb.
 * Begonia brevirimosa Irmsch.
 * Begonia × breviscapa C.I Peng, Yan Liu & S.M.Ku
 * Begonia brevisetulosa C.Y.Wu
 * Begonia bridgesii A.DC.
 * Begonia bruneiana Sands
 * Begonia buchtienii Irmsch.
 * Begonia buddleiifolia A.DC.
 * Begonia bufoderma L.B.Sm. & Wassh.
 * Begonia buimontana Yamam.
 * Begonia bulbillifera Link & Otto
 * Begonia bullata Urb. & Ekman
 * Begonia bullatifolia L.Kollmann
 * Begonia burbidgei Stapf
 * Begonia burkillii Dunn
 * Begonia burmensis L.B.Sm. & Wassh.
 * Begonia burttii Kiew & S.Julia
 * Begonia buseyi Burt-Utley

C

 * Begonia cacauicola L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia caespitosa Jack
 * Begonia calcarea Ridl.
 * Begonia calcicola Merr.
 * Begonia calderonii Standl.
 * Begonia calliantha Merr. & L.M.Perry
 * Begonia callosa L.Kollmann
 * Begonia calvescens (Brade ex L.B.Sm. & R.C.Sm.) E.L.Jacques & Mamede
 * Begonia campanensis Burt-Utley & Utley
 * Begonia camposportoana Brade
 * Begonia canarana Miq.
 * Begonia candollei Ziesenh.
 * Begonia capanemae Brade
 * Begonia caparaoensis E.L.Jacques & L.Kollmann
 * Begonia capensis L.f.
 * Begonia capillipes Gilg
 * Begonia capituliformis Irmsch.
 * Begonia caraguatatubensis Rubite,R.R., M. Irabagon, D. Palacio, Y.P.Ang, & R.Bustam.
 * Begonia caramoanensis Brade
 * Begonia cardiocarpa Liebm.
 * Begonia cardiophora Irmsch.
 * Begonia cariocana Brade ex L.B.Sm. & Wassh.
 * Begonia carletonii Standl.
 * Begonia carnosa Teijsm. & Binn.
 * Begonia carnosula Ridl.
 * Begonia carolineifolia Regel
 * Begonia carpinifolia Liebm.
 * Begonia carrieae Ziesenh.
 * Begonia casiguranensis Quisumb. & Merr.
 * Begonia castaneifolia Otto & Dietr.
 * Begonia castilloi Merr.
 * Begonia catharinensis Brade
 * Begonia cathayana Hemsl.
 * Begonia cathcartii Hook.f. & Thomson
 * Begonia caudata Merr.
 * Begonia cauliflora Sands
 * Begonia cavaleriei H.Lév.
 * Begonia cavallyensis A.Chev.
 * Begonia cavum Ziesenh.
 * Begonia cebadillensis Houghton ex L.B.Sm. & Schub.
 * Begonia cehengensis T.C.Ku
 * Begonia celebica Irmsch.
 * Begonia cerasiphylla L.B.Sm. & Wassh.
 * Begonia ceratocarpa S.H.Huang & Y.M.Shui
 * Begonia chaetocarpa Kuntze
 * Begonia chaiana Kiew & S.Julia
 * Begonia chiapensis Burt-Utley
 * Begonia chiasmogyna M.Hughes
 * Begonia chingii Irmsch.
 * Begonia chishuiensis T.C.Ku
 * Begonia chitoensis Tang S.Liu & M.J.Lai
 * Begonia chivatoa Ziesenh.
 * Begonia chlorandra Sands
 * Begonia chlorocarpa Irmsch. ex Sands
 * Begonia chlorolepis L.B.Sm. & B.G.Schub.
 * Begonia chloroneura P.Wilkie & Sands
 * Begonia chlorosticta Sands
 * Begonia chongii Sands
 * Begonia × chungii C.I Peng & S.M.Ku
 * Begonia chuniana C.Y.Wu
 * Begonia chuyunshanensis C.I Peng & Y.K.Chen
 * Begonia ciliifera Merr.
 * Begonia ciliobracteata Warb.
 * Begonia cincinnifera Irmsch.
 * Begonia cinnabarina Hook.
 * Begonia circumlobata Hance
 * Begonia cirrosa L.B.Sm. & Wassh.
 * Begonia cladocarpoides Humbert ex Aymonin & Bosser
 * Begonia cladotricha M.Hughes
 * Begonia clarkei Hook.f.
 * Begonia clavicaulis Irmsch.
 * Begonia clemensiae Merr. & L.M.Perry
 * Begonia cleopatrae Coyle
 * Begonia clypeifolia Hook.f.
 * Begonia coccinea Hook.
 * Begonia coelocentroides Y.M.Shui & Z.D.Wei
 * Begonia cognata Irmsch.
 * Begonia collaris Brade
 * Begonia collina Irmsch.
 * Begonia collisiae Merr.
 * Begonia colombiana L.B.Sm. & B.G.Schub.
 * Begonia colorata Warb.
 * Begonia comata Kuntze
 * Begonia comestibilis D.C.Thomas & Ardi
 * Begonia comorensis Warb.
 * Begonia compacticaulis Irmsch.
 * Begonia concanensis A.DC.
 * Begonia conchifolia A.Dietr.
 * Begonia concinna Schott
 * Begonia confinis L.B.Sm. & Wassh.
 * Begonia confusa L.B.Sm. & B.G.Schub.
 * Begonia congesta Ridl.
 * Begonia conipila Irmsch. ex Kiew
 * Begonia consanguinea Merr.
 * Begonia consobrina Irmsch.
 * Begonia contracta Warb.
 * Begonia convallariodora C.DC.
 * Begonia convolvulacea (Klotzsch) A.DC.
 * Begonia cooperi C.DC.
 * Begonia copelandii Merr.
 * Begonia copeyana C.DC.
 * Begonia coptidifolia H.G.Ye, F.G.Wang, Y.S.Ye & C.I Peng
 * Begonia coptidimontana C.Y.Wu
 * Begonia cordata Vell.
 * Begonia cordifolia (Wight) Thwaites
 * Begonia coriacea Hassk.
 * Begonia corneri Kiew
 * Begonia cornitepala Irmsch.
 * Begonia cornuta L.B.Sm. & B.G.Schub.
 * Begonia coronensis Merr.
 * Begonia corredorana C.DC.
 * Begonia corrugata Kiew & S.Julia
 * Begonia corzoensis Ziesenh.
 * Begonia coursii Humbert ex Aymonin
 * Begonia cowellii Nash
 * Begonia crassicaulis Lindl.
 * Begonia crateris Exell
 * Begonia crenata Dryand.
 * Begonia crinita Oliv. ex Hook.f.
 * Begonia crispipila Elmer
 * Begonia crispula Brade
 * Begonia cristata Warb. ex L.B.Sm. & Wassh.
 * Begonia cristobalensis Ziesenh.
 * Begonia croatii Burt-Utley
 * Begonia crocea C.I Peng
 * Begonia cryptocarpa L.B.Sm. & B.G.Schub.
 * Begonia crystallina Y.M.Shui & W.H.Chen
 * Begonia cuatrecasana L.B.Sm. & B.G.Schub.
 * Begonia cubensis Hassk.
 * Begonia cucphuongensis H.Q.Nguyen & Tebbitt
 * Begonia cucullata Willd.
 * Begonia cucurbitifolia C.Y.Wu
 * Begonia cuernavacensis Ziesenh.
 * Begonia cumingiana (Klotzsch) A.DC.
 * Begonia cumingii A.Gray
 * Begonia cuneatifolia Irmsch.
 * Begonia cupreata Henriq.
 * Begonia curtii L.B.Sm. & B.G.Schub.
 * Begonia curtisii Ridl.
 * Begonia curvicarpa S.M.Ku, C.I Peng & Yan Liu
 * Begonia cyanescens Sands
 * Begonia cyathophora Poepp. & Endl.
 * Begonia cylindrata L.B.Sm. & B.G.Schub.
 * Begonia cylindrica D.R.Liang & X.X.Chen
 * Begonia cymbalifera L.B.Sm. & B.G.Schub.

D

 * Begonia davisii Burbridge
 * Begonia daweishanensis S.H.Huang & Y.M.Shui
 * Begonia daxinensis T.C.Ku
 * Begonia dealbata Liebm.
 * Begonia debaoensis C.I Peng, Yan Liu & S.M.Ku
 * Begonia debilis King
 * Begonia decandra Pav. ex A.DC.
 * Begonia decaryana Humbert ex Aymonin & Bosser
 * Begonia declinata Vell.
 * Begonia decora Stapf
 * Begonia delicata Gregório & J.A.S. Costa
 * Begonia delicatula Parish ex C.B.Clarke
 * Begonia demissa Craib
 * Begonia densifolia Irmsch.
 * Begonia densiretis Irmsch.
 * Begonia dentatiloba A.DC.
 * Begonia dentatobracteata C.Y.Wu
 * Begonia denticulata Kunth
 * Begonia depauperata Schott
 * Begonia descoleana L.B.Sm. & B.G.Schub.
 * Begonia dewildei Sosef
 * Begonia dichotoma Jacq.
 * Begonia didyma D.C.Thomas & Ardi
 * Begonia dielsiana E.Pritz. ex Diels
 * Begonia dietrichiana Irmsch.
 * Begonia diffusa L.B.Sm. & B.G.Schub.
 * Begonia diffusiflora Merr. & L.M.Perry
 * Begonia digitata Raddi
 * Begonia digyna Irmsch.
 * Begonia dinhdui Craib
 * Begonia dioica Buch.-Ham. ex D.Don
 * Begonia dipetala Graham
 * Begonia discrepans Irmsch.
 * Begonia discreta Craib
 * Begonia divaricata Irmsch.
 * Begonia diversistipulata Irmsch.
 * Begonia diwolii Kiew
 * Begonia djamuensis Irmsch.
 * Begonia dodsonii L.B.Sm. & Wassh.
 * Begonia dolichotricha Merr.
 * Begonia domingensis A.DC.
 * Begonia donkelaariana Lem.
 * Begonia dosedlae Gilli
 * Begonia dregei Otto & Dietr.
 * Begonia dressleri Burt-Utley
 * Begonia droopiae Ardi
 * Begonia dryadis Irmsch.
 * Begonia duclouxii Gagnep.
 * Begonia dugandiana L.B.Sm. & B.G.Schub.
 * Begonia duncan-thomasii Sosef
 * Begonia dux C.B.Clarke
 * Begonia datii T.S.Hoang & C.W.Lin

E

 * Begonia eberhardtii Gagnep.
 * Begonia ebolowensis Engl.
 * Begonia echinosepala Regel
 * Begonia eciliata O.E.Schulz
 * Begonia edanoi Merr.
 * Begonia edmundoi Brade
 * Begonia edulis H.Lév.
 * Begonia egregia N.E.Br.
 * Begonia eiromischa Ridl.
 * Begonia elaeagnifolia Hook.f.
 * Begonia elastotemmoides Hook. f.
 * Begonia elatostematoides Merr.
 * Begonia elatostemma Ridl.
 * Begonia elatostemmoides Hook.f.
 * Begonia elianeae Gregório & J.A.S. Costa
 * Begonia eliassii Warb.
 * Begonia elisabethae Kiew
 * Begonia elmeri Merr.
 * Begonia elnidoensis C.I Peng, Rubite & C.W.Lin
 * Begonia embera Jara & D.Franco
 * Begonia emeiensis C.M.Hu
 * Begonia eminii Warb.
 * Begonia engleri Gilg
 * Begonia epibaterium Mart. ex A.DC.
 * Begonia epipsila Brade
 * Begonia erecta Vell.
 * Begonia erectocaulis Sosef
 * Begonia erectotricha Sosef
 * Begonia erminea L'Hér.
 * Begonia erythrocarpa A.DC.
 * Begonia erythrogyna Sands
 * Begonia esculenta Merr.
 * Begonia espiritosantensis E.L.Jacques & Mamede
 * Begonia estrellensis C.DC.
 * Begonia euryphylla L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia eutricha Sands
 * Begonia everettii Merr.
 * Begonia exalata C.DC.
 * Begonia exigua Irmsch.
 * Begonia exilis O.E.Schulz
 * Begonia extensa L.B.Sm. & B.G.Schub.
 * Begonia extranea L.B.Sm. & B.G.Schub.

F

 * Begonia fabulosa L.B.Sm. & Wassh.
 * Begonia fagifolia Fisch.
 * Begonia falcifolia Hook.f.
 * Begonia falciloba Liebm.
 * Begonia fangii Y.M.Shui & C.I Peng
 * Begonia fasciculata Jack
 * Begonia fasciculiflora Merr.
 * Begonia faustinoi Burt-Utley & Utley
 * Begonia fellereriana Irmsch.
 * Begonia fengii T.C.Ku
 * Begonia fenicis Merr.
 * Begonia fernaldiana L.B.Sm. & B.G.Schub.
 * Begonia fernandoi-costae Irmsch.
 * Begonia ferox C.-I Peng & Yan Liu
 * Begonia ferramica N.Hallé
 * Begonia ferruginea L.f.
 * Begonia festiva Craib
 * Begonia fibrosa C.B.Clarke
 * Begonia fiebrigii C.DC.
 * Begonia filibracteosa Irmsch.
 * Begonia filiformis Irmsch.
 * Begonia fimbriata Liebm.
 * Begonia fimbribracteata Y.M.Shui & W.H.Chen
 * Begonia fimbristipula Hance
 * Begonia fischeri Schrank
 * Begonia fissistyla Irmsch.
 * Begonia flacca Irmsch.
 * Begonia flaccidissima Kurz
 * Begonia flagellaris H.Hara
 * Begonia flaviflora H.Hara
 * Begonia flexicaulis Ridl.
 * Begonia flexula Ridl.
 * Begonia floccifera Bedd.
 * Begonia fluminensis Brade
 * Begonia foliosa Kunth
 * Begonia forbesii King
 * Begonia fordii Irmsch.
 * Begonia forgetiana Hemsl.
 * Begonia formosana (Hayata) Masam.
 * Begonia formosissima Sandwith
 * Begonia forrestii Irmsch.
 * Begonia fortunensis Burt-Utley & Utley
 * Begonia foveolata Irmsch.
 * Begonia foxworthyi Burkill ex Ridl.
 * Begonia francisiae Ziesenh.
 * Begonia francoisii Guillaumin
 * Begonia fraseri Kiew
 * Begonia friburgensis Brade
 * Begonia froebelii A.DC.
 * Begonia fruticella Ridl.
 * Begonia fruticosa (Klotzsch) A.DC.
 * Begonia fuchsiiflora (A.DC.) A.I.Baranov & F.A.Barkley
 * Begonia fuchsioides Hook.
 * Begonia fulgurata Peng, C.-I; Lin, C.-W.; Phutthai, T.
 * Begonia fulvosetulosa Brade
 * Begonia fulvovillosa Warb.
 * Begonia furfuracea Hook.f.
 * Begonia fusca Liebm.
 * Begonia fuscisetosa Sands
 * Begonia fuscocaulis Brade
 * Begonia fusialata Warb.
 * Begonia fusibulba C.DC.
 * Begonia fusicarpa Irmsch.

G

 * Begonia gabonensis J.J.de Wilde
 * Begonia gagnepainiana Irmsch.
 * Begonia galea Moonlight & A.Fuentes
 * Begonia gamolepis L.B.Sm. & B.G.Schub.
 * Begonia garagarana C.DC.
 * Begonia gardneri A.DC.
 * Begonia garrettii Craib
 * Begonia garuvae L.B.Sm. & R.C.Sm.
 * Begonia gehrtii Irmsch.
 * Begonia gemella Warb. ex L.B.Sm. & Wassh.
 * Begonia geminiflora L.B.Sm. & Wassh.
 * Begonia gemmipara Hook.f. & Thomson
 * Begonia gemmirhiza H.Lév.
 * Begonia gentilii De Wild.
 * Begonia geoffrayi Gagnep.
 * Begonia georgei Coyle
 * Begonia geraniifolia Hook.
 * Begonia geranioides Hook.f.
 * Begonia gesnerioides L.B.Sm. & B.G.Schub.
 * Begonia gibbsiae Irmsch. ex Sands
 * Begonia gigabracteata Hong Z.Li & H.Ma
 * Begonia gigaphylla Y.M.Shui & W.H.Chen
 * Begonia gilgiana Irmsch.
 * Begonia gironellae C.I Peng & Rubite & C.W.Lin
 * Begonia gitingensis Elmer
 * Begonia glaberrima Urb. & Ekman
 * Begonia glabra Aubl.
 * Begonia glabricaulis Irmsch.
 * Begonia glandulifera Griseb.
 * Begonia glandulosa A.DC. ex Hook.
 * Begonia glauca (Klotzsch) Ruiz & Pav. ex A.DC.
 * Begonia glaucoides Irmsch.
 * Begonia glechomifolia C.M.Hu
 * Begonia glutinosa Kiew
 * Begonia goegoensis N.E.Br.
 * Begonia goldingiana L.Kollmann & A.P.Fontana
 * Begonia gomantongensis Kiew
 * Begonia goniotis C.B.Clarke
 * Begonia gorgonea Tebbitt
 * Begonia gossweileri Irmsch.
 * Begonia goudotii A.DC.
 * Begonia gracilicyma Irmsch. ex M.Hughes
 * Begonia gracilior Burt-Utley & McVaugh
 * Begonia gracilipes Merr.
 * Begonia gracilis Kunth
 * Begonia gracillima A.DC.
 * Begonia grandipetala Irmsch.
 * Begonia grandis Dryand.
 * Begonia grantiana Craib
 * Begonia grata Geddes
 * Begonia griffithiana (A.DC.) Warb.
 * Begonia grisea A.DC.
 * Begonia groenewegensis K.Koch & Fint.
 * Begonia guaduensis Kunth
 * Begonia guangxiensis C.Y.Wu
 * Begonia guaniana H.Ma & Hong Z.Li
 * Begonia guatemalensis Van Houtte ex Galeotti
 * Begonia gueritziana Gibbs
 * Begonia guishanensis S.H.Huang & Y.M.Shui
 * Begonia gulinqingensis S.H.Huang & Y.M.Shui
 * Begonia gungshanensis C.Y.Wu
 * Begonia gunnerifolia Linden & André
 * Begonia gutierrezii Coyle
 * Begonia guttapila D.C.Thomas & Ardi
 * Begonia guttata Wall. ex A.DC.

H

 * Begonia hahiepiana H.Q.Nguyen & Tebbitt
 * Begonia hainanensis Chun & F.Chun
 * Begonia halconensis Merr.
 * Begonia handelii Irmsch.
 * Begonia handroi Brade
 * Begonia haniffii Burkill
 * Begonia harlingii L.B.Sm. & Wassh.
 * Begonia harmandii Gagnep.
 * Begonia hasskarliana (Miq.) Miq. ex A.DC.
 * Begonia hassleri C.DC.
 * Begonia hatacoa Buch.-Ham. ex D.Don
 * Begonia havilandii Ridl.
 * Begonia hayamiana Nob.Tanaka
 * Begonia hayatae Gagnep.
 * Begonia hekensis D.C.Thomas
 * Begonia hekouensis S.H.Huang
 * Begonia heliostrophe Kiew
 * Begonia hemsleyana Hook.f.
 * Begonia henryi Hemsl.
 * Begonia heracleifolia Cham. & Schltdl.
 * Begonia herbacea Vell.
 * Begonia heringeri Brade
 * Begonia hernandioides Merr.
 * Begonia herrerae L.B.Sm. & B.G.Schub.
 * Begonia herteri Irmsch.
 * Begonia herveyana King
 * Begonia heterochroma Sosef
 * Begonia heteroclinis Miq. ex Koord.
 * Begonia heteropoda Baker
 * Begonia hexandra Irmsch.
 * Begonia hexaptera Sands
 * Begonia heydei C.DC.
 * Begonia hidirii Tawan, Ipor & Meekiong
 * Begonia × hiemalis Fotsch
 * Begonia hilariana A.DC.
 * Begonia hintoniana L.B.Sm. & B.G.Schub.
 * Begonia hirsuta Aubl.
 * Begonia hirsuticaulis Irmsch.
 * Begonia hirsutula Hook.f.
 * Begonia hirta (Klotzsch) L.B.Sm. & B.G.Schub.
 * Begonia hirtella Link
 * Begonia hispida Schott ex A.DC.
 * Begonia hispidissima Zipp. ex Koord.
 * Begonia hispidivillosa Ziesenh.
 * Begonia hitchcockii Irmsch.
 * Begonia hoehneana Irmsch.
 * Begonia holmnielseniana L.B.Sm. & Wassh.
 * Begonia holosericea Teijsm. & Binn.
 * Begonia holtonis A.DC.
 * Begonia holttumii Irmsch.
 * Begonia homonyma Steud.
 * Begonia hondurensis Burt-Utley & Utley
 * Begonia hongkongensis F.W.Xing
 * Begonia hookeriana Gardner
 * Begonia horsfieldii (Miq.) Miq. ex A.DC.
 * Begonia horticola Irmsch.
 * Begonia houttuynioides T.T.Yu
 * Begonia howii Merr. & Chun
 * Begonia huangii Y.M.Shui & W.H.Chen
 * Begonia hubertii Ziesenh.
 * Begonia huegelii (Klotzsch) A.DC.
 * Begonia hullettii Ridl.
 * Begonia humbertii Keraudren
 * Begonia humboldtiana Gibbs
 * Begonia humericola Sands
 * Begonia humifusa S.Julia & Kiew
 * Begonia humilicaulis Irmsch.
 * Begonia humilis Aiton
 * Begonia humillima L.B.Sm. & Wassh.
 * Begonia hydrocotylifolia Otto ex Hook.
 * Begonia hydrophylloides L.B.Sm. & B.G.Schub.
 * Begonia hymenocarpa C.Y.Wu
 * Begonia hymenophylla Gagnep.
 * Begonia hymenophylloides F.K.Ward ex L.B.Sm. & Wassh.

I

 * Begonia ibitiocensis E.L.Jacques & Mamede
 * Begonia ignea (Klotzsch) Warsz. ex A.DC.
 * Begonia ignorata Irmsch.
 * Begonia ignota C.Y.Ling & Kiew
 * Begonia imbricata Sands
 * Begonia imitans Irmsch.
 * Begonia imperfecta Irmsch.
 * Begonia imperialis Lem.
 * Begonia incarnata Link & Otto
 * Begonia incerta Craib
 * Begonia incisa A.DC.
 * Begonia incisoserrata (Klotzsch) A.DC.
 * Begonia incondita Craib
 * Begonia inconspicua Brade
 * Begonia inculta Irmsch.
 * Begonia inostegia Stapf
 * Begonia insolita C.Y.Ling & S.Julia
 * Begonia insueta D.C.Thomas & Ardi
 * Begonia insularis Brade
 * Begonia insularum Irmsch.
 * Begonia integerrima Spreng.
 * Begonia integrifolia Dalzell
 * Begonia intermixta Irmsch.
 * Begonia inversa Irmsch.
 * Begonia involucrata Liebm.
 * Begonia ionophylla Irmsch.
 * Begonia iridescens Dunn
 * Begonia irmscheri L.B.Sm. & B.G.Schub.
 * Begonia isabelensis Quisumb. & Merr.
 * Begonia isalensis Humbert ex Aymonin & Bosser
 * Begonia isoptera Dryand. ex Sm.
 * Begonia isopterocarpa Irmsch.
 * Begonia isopteroidea King
 * Begonia itaguassuensis Brade
 * Begonia itapavensis Brade
 * Begonia itatiaiensis Brade
 * Begonia itatinensis Irmsch. ex Brade
 * Begonia iucunda Irmsch.

J

 * Begonia jagorii Warb.
 * Begonia jaliscana Burt-Utley
 * Begonia jamaicensis A.DC.
 * Begonia jarmilae Halda
 * Begonia jayaensis Kiew
 * Begonia jenmanii Tutin
 * Begonia jiewhoei Kiew
 * Begonia jingxiensis D.Fang & Y.G.Wei
 * Begonia jocelinoi Brade
 * Begonia johnstonii Oliv. ex Hook.f.
 * Begonia josephi A.DC.
 * Begonia juliana Loefgr. ex Irmsch.
 * Begonia juliasangii Kiew
 * Begonia juninensis Irmsch.
 * Begonia juntasensis Kuntze
 * Begonia jureiensis S.J.Gomes da Silva & Mamede

K

 * Begonia kabaenensis D.C.Thomas & Ardi
 * Begonia kachak K.G.Pearce
 * Begonia kachinensis Nob.Tanaka
 * Begonia kalabenonensis Humbert ex Aymonin & Bosser
 * Begonia kalbreyeri (Oliv.) L.B.Sm. & B.G.Schub.
 * Begonia kaniensis Irmsch.
 * Begonia karperi J.C.Arends
 * Begonia karwinskyana A.DC.
 * Begonia kasutensis K.G.Pearce
 * Begonia kebuhoensis S.Julia & C.Y.Ling
 * Begonia keeana Kiew
 * Begonia keithii Kiew
 * Begonia kelliana Irmsch.
 * Begonia kenworthyae Ziesenh.
 * Begonia keraudreniae Bosser
 * Begonia kerrii Craib
 * Begonia kerstingii Irmsch.
 * Begonia khasiana C.B.Clarke
 * Begonia kiamfeei Kiew & S.Julia
 * Begonia killipiana L.B.Sm. & B.G.Schub.
 * Begonia kinabaluensis Sands
 * Begonia kingdon-wardii Tebbitt
 * Begonia kingiana Irmsch.
 * Begonia kinhoi Ardi & D.C.Thomas
 * Begonia kisuluana Büttner
 * Begonia klemmei Merr.
 * Begonia klossii Ridl.
 * Begonia knoopii Ziesenh.
 * Begonia koksunii Kiew
 * Begonia komoensis Irmsch.
 * Begonia konderreisiana L.B.Sm. & R.C.Sm.
 * Begonia koordersii Warb. ex L.B.Sm. & Wassh.
 * Begonia kortsiae Ziesenh.
 * Begonia kouytcheouensis Guillaumin
 * Begonia krystofii Halda
 * Begonia kuhlmannii Brade
 * Begonia kui C.I Peng
 * Begonia kumangiana S.Julia & C.Y.Ling
 * Begonia kunthiana Walp.
 * Begonia kurakura Tawan, Ipor & Meekiong

L

 * Begonia labengkiensis Ardi & D.C.Thomas
 * Begonia labordei H.Lév.
 * Begonia laccophora Sands
 * Begonia lacera Merr.
 * Begonia lacerata Irmsch.
 * Begonia lachaoensis Ziesenh.
 * Begonia lacunosa Warb.
 * Begonia laevis Ridl.
 * Begonia lagunensis Elmer
 * Begonia lailana Kiew & Geri
 * Begonia lambii Kiew
 * Begonia laminariae Irmsch.
 * Begonia lancangensis S.H.Huang (vi)
 * Begonia lanceolata Vell.
 * Begonia lancifolia Merr.
 * Begonia lancilimba Merr.
 * Begonia langbianensis Baker f.
 * Begonia lansbergeae L.Linden & Rodigas
 * Begonia lanstyakii Brade
 * Begonia lanternaria Irmsch.
 * Begonia laporteifolia Warb.
 * Begonia larorum L.B.Sm. & Wassh.
 * Begonia laruei M.Hughes
 * Begonia lasioura D.C.Thomas & Ardi
 * Begonia latifolia S.Julia & C.Y.Ling
 * Begonia latistipula Merr.
 * Begonia lauterbachii Warb.
 * Begonia laxa L.B.Sm. & B.G.Schub.
 * Begonia layang-layang Kiew
 * Begonia lazat Kiew & Reza Azmi
 * Begonia lealii Brade
 * Begonia leandrii Humbert ex Aymonin & Bosser
 * Begonia leathermaniae O'Reilly & Kareg.
 * Begonia lecomtei Gagnep.
 * Begonia ledermannii Irmsch.
 * Begonia lehmannii (Irmsch.) L.B.Sm. & B.G.Schub.
 * Begonia leivae J.Sierra
 * Begonia lempuyangensis Girm.
 * Begonia lemurica Keraudren
 * Begonia lengguanii Kiew
 * Begonia leopoldinensis L.Kollmann
 * Begonia lepida Blume
 * Begonia lepidella Ridl.
 * Begonia leprosa Hance
 * Begonia leptantha C.B.Rob.
 * Begonia leptoptera H.Hara
 * Begonia leptostyla Irmsch.
 * Begonia letestui J.J.de Wilde
 * Begonia letouzeyi Sosef
 * Begonia leucantha Ridl.
 * Begonia leucochlora Sands
 * Begonia leuconeura Urb. & Ekman
 * Begonia leucosticta Warb.
 * Begonia leucotricha Sands
 * Begonia libanensis Urb.
 * Begonia libera (L.B.Sm. & B.G.Schub.) L.B.Sm. & B.G.Schub.
 * Begonia lignescens Morton
 * Begonia limprichtii Irmsch.
 * Begonia lindleyana Walp.
 * Begonia lindmanii Brade
 * Begonia linearifolia J.Sierra
 * Begonia lineolata Brade
 * Begonia lipingensis Irmsch.
 * Begonia lipolepis L.B.Sm.
 * Begonia listada L.B.Sm. & Wassh.
 * Begonia lithophila C.Y.Wu
 * Begonia littleri Merr.
 * Begonia liuyanii C.I Peng, S.M.Ku & W.C.Leong
 * Begonia lobbii (Hassk.) A.DC.
 * Begonia loheri Merr.
 * Begonia lombokensis Girm.
 * Begonia lomensis Britton & Wilson
 * Begonia longanensis C.Y.Wu
 * Begonia longialata K.Y.Guan & D.K.Tian
 * Begonia longibarbata Brade
 * Begonia longibractea Merr.
 * Begonia longicarpa K.Y.Guan & D.K.Tian
 * Begonia longicaulis Ridl.
 * Begonia longifolia Blume
 * Begonia longimaculata Irmsch.
 * Begonia longinoda Merr.
 * Begonia longipedunculata Golding & Kareg.
 * Begonia longipetiolata Gilg
 * Begonia longirostris Benth.
 * Begonia longiscapa Warb.
 * Begonia longiseta Irmsch.
 * Begonia longistipula Merr.
 * Begonia longistyla Y.M.Shui & W.H.Chen
 * Begonia longivillosa A.DC.
 * Begonia lopensis Sosef & M.E.Leal
 * Begonia lophoptera Rolfe
 * Begonia loranthoides Hook.f.
 * Begonia lossiae L.Kollmann
 * Begonia louis-williamsii Burt-Utley
 * Begonia lowiana King
 * Begonia lubbersii E.Morren
 * Begonia lucidissima Golding & Kareg.
 * Begonia lucifuga Irmsch.
 * Begonia ludicra A.DC.
 * Begonia ludwigii Irmsch.
 * Begonia lugonis L.B.Sm. & Wassh.
 * Begonia lukuana Y.C.Liu & C.H.Ou
 * Begonia lunaris E.L.Jacques
 * Begonia lunatistyla Irmsch.
 * Begonia luochengensis S.M.Ku, C.I Peng & Yan Liu
 * Begonia lushaiensis C.E.C.Fisch.
 * Begonia lutea L.B.Sm. & B.G.Schub.
 * Begonia luxurians Scheidw.
 * Begonia luzhaiensis T.C.Ku
 * Begonia luzonensis Warb.
 * Begonia lyallii A.DC.
 * Begonia lyman-smithii Burt-Utley & Utley
 * Begonia lyniceorum Burt-Utley

M

 * Begonia macduffieana L.B.Sm. & B.G.Schub.
 * Begonia macgregorii Merr.
 * Begonia machrisiana L.B.Sm. & B.G.Schub.
 * Begonia macintyreana M.Hughes
 * Begonia macra A.DC.
 * Begonia macrocarpa Warb.
 * Begonia macrotis Vis.
 * Begonia macrotoma Irmsch.
 * Begonia maculata Raddi
 * Begonia madaiensis Kiew
 * Begonia madecassa Keraudren
 * Begonia maestrensis Urb.
 * Begonia magdalenae L.B.Sm. & B.G.Schub.
 * Begonia magdalenensis Brade
 * Begonia majungaensis Guillaumin
 * Begonia makrinii C.V. Morton ex Burt-Utley & K. Utley
 * Begonia malabarica Lam.
 * Begonia malachosticta Sands
 * Begonia malindangensis Merr.
 * Begonia malipoensis S.H.Huang & Y.M.Shui
 * Begonia malmquistiana Irmsch.
 * Begonia mamutensis Sands
 * Begonia mananjebensis Humbert
 * Begonia mangorensis Humbert
 * Begonia manhaoensis S.H.Huang & Y.M.Shui
 * Begonia manicata Brongn.
 * Begonia manillensis A.DC.
 * Begonia mannii Hook.f.
 * Begonia manuselaensis, endemic of Manusela National Park on karst lowland, Ceram Island
 * Begonia maracayuensis Parodi
 * Begonia mariae L.B.Sm.
 * Begonia mariannensis Wassh. & McClellan
 * Begonia mariti Burt-Utley
 * Begonia marnieri Keraudren
 * Begonia marojejyensis Humbert
 * Begonia martabanica A.DC.
 * Begonia masarangensis Irmsch.
 * Begonia mashanica D.Fang & D.H.Qin
 * Begonia masoalaensis M.Hughes
 * Begonia masoniana Irmsch. ex Ziesenh.
 * Begonia matogrossensis L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia mattos-silvae L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia matudae Burt-Utley & Utley
 * Begonia maurandiae A.DC.
 * Begonia maxima hort. ex Klotzsch
 * Begonia maxwelliana King
 * Begonia mayasiana L.B.Sm. & B.G.Schub.
 * Begonia maynensis A.DC.
 * Begonia mazae Ziesenh.
 * Begonia mbangaensis Sosef
 * Begonia mearnsii Merr.
 * Begonia media Merr. & L.M.Perry
 * Begonia medusae Linden
 * Begonia megacarpa Merr.
 * Begonia megalantha Merr.
 * Begonia megalophyllaria C.Y.Wu
 * Begonia megaptera A.DC.
 * Begonia mekonggensis Girm. & Wiriad.
 * Begonia melanobullata C.-I Peng & C. W. Lin.
 * Begonia melikopia Kiew
 * Begonia membranacea A.DC.
 * Begonia menchunaensis P.Gyeltshen & M.Hughes
 * Begonia mendumae M.Hughes
 * Begonia menglianensis Y.Y.Qian
 * Begonia mengtzeana Irmsch.
 * Begonia mentiens S.Julia & Kiew
 * Begonia meridensis A.DC.
 * Begonia meriraiensis S.Julia & Kiew
 * Begonia merrittii Merr.
 * Begonia mexicana G. Karst. ex Fotsch
 * Begonia meyeri-johannis Engl.
 * Begonia meysseliana Linden
 * Begonia michoacana L.B.Sm. & B.G.Schub.
 * Begonia micranthera Griseb.
 * Begonia microcarpa A.DC.
 * Begonia microptera Hook.f.
 * Begonia microsperma Warb.
 * Begonia mildbraedii Gilg
 * Begonia militaris L.B.Sm. & B.G.Schub.
 * Begonia mindanaensis Warb.
 * Begonia mindorensis Merr.
 * Begonia minicarpa H.Hara
 * Begonia minjemensis Irmsch.
 * Begonia minor Jacq.
 * Begonia minuta Sosef
 * Begonia minutiflora Sands
 * Begonia minutifolia N.Hallé
 * Begonia miranda Irmsch.
 * Begonia modestiflora Kurz
 * Begonia molinana Burt-Utley
 * Begonia molleri (C.DC.) Warb.
 * Begonia mollicaulis Irmsch.
 * Begonia mollis A.DC.
 * Begonia monadelpha (Klotzsch) Ruiz & Pav. ex A.DC.
 * Begonia monantha Warb.
 * Begonia monicae Aymonin & Bosser
 * Begonia monophylla Pav. ex A.DC.
 * Begonia montana (A.DC.) Warb.
 * Begonia montis-bismarckii Warb.
 * Begonia montis-elephantis J.J.de Wilde
 * Begonia mooreana (Irmsch.) L.L.Forrest & Hollingsw.
 * Begonia morelii Irmsch. ex Kareg.
 * Begonia morifolia T.T.Yu
 * Begonia morii Burt-Utley
 * Begonia morrisiorum Rekha Morris & P.D.McMillan
 * Begonia morsei Irmsch.
 * Begonia moszkowskii Irmsch.
 * Begonia moysesii Brade
 * Begonia mucronistipula C.DC.
 * Begonia muliensis T.T.Yu
 * Begonia multangula Blume
 * Begonia multibracteata Girm.
 * Begonia multidentata Warb.
 * Begonia multijugata M.Hughes
 * Begonia multinervia Liebm.
 * Begonia multistaminea Burt-Utley
 * Begonia muricata Blume
 * Begonia murina Craib
 * Begonia murudensis Merr.
 * Begonia mystacina L.B.Sm. & Wassh.
 * Begonia mysteriosa L.Kollmann & A.P.Fontana
 * Begonia masilig J.Collantes, C.J.P.Dela Cruz & Y.P.Ang,

N

 * Begonia naemma Y.P.Ang, Aumentado & Magtoto
 * Begonia nagaensis Kiew & S.Julia
 * Begonia nana L'Hér.
 * Begonia nantoensis M.J.Lai & N.J.Chung
 * Begonia napoensis L.B.Sm. & Wassh.
 * Begonia naumoniensis Irmsch.
 * Begonia neglecta A.DC.
 * Begonia negrosensis Elmer
 * Begonia nelumbiifolia Cham. & Schltdl.
 * Begonia nemoralis L.B.Sm. & B.G.Schub.
 * Begonia neocomensium A.DC.
 * Begonia neoharlingii L.B.Sm. & Wassh.
 * Begonia neoperrieri Humbert ex Aymonin & Bosser
 * Begonia neopurpurea L.B.Sm. & Wassh.
 * Begonia nepalensis (A.DC.) Warb.
 * Begonia nevadensis Dorr
 * Begonia niahensis K.G.Pearce
 * Begonia nigritarum Steud.
 * Begonia ningmingensis D.Fang, Y.G.Wei & C.I Peng
 * Begonia nivea Parish ex Kurz
 * Begonia nobmanniae D.C.Thomas & Ardi
 * Begonia noraaunorae Blasco, Tandang, Alejandro & Rubite
 * Begonia nossibea A.DC.
 * Begonia notata Craib
 * Begonia notiophila Urb.
 * Begonia novalombardiensis L.Kollmann
 * Begonia novogranatae A.DC.
 * Begonia novoguineensis Merr. & L.M.Perry
 * Begonia nubicola L.B.Sm. & B.G.Schub.
 * Begonia nuda Irmsch.
 * Begonia nummulariifolia Putz.
 * Begonia nurii Irmsch.
 * Begonia nuwakotensis S.Rajbh.
 * Begonia nyassensis Irmsch.
 * Begonia nymphaeifolia T.T.Yu

O

 * Begonia oaxacana A.DC.
 * Begonia oblanceolata Rusby
 * Begonia obliqua L.
 * Begonia obliquifolia S.H.Huang & Y.M.Shui
 * Begonia oblongata Merr.
 * Begonia oblongifolia Stapf
 * Begonia obovatistipula C.DC.
 * Begonia obovoidea Craib
 * Begonia obscura Brade
 * Begonia obsolescens Irmsch.
 * Begonia obtecticaulis Irmsch.
 * Begonia obtusifolia Merr.
 * Begonia obversa C.B.Clarke
 * Begonia occhionii Brade
 * Begonia octopetala L'Hér.
 * Begonia odeteiantha Handro
 * Begonia oellgaardii L.B.Sm. & Wassh.
 * Begonia olbia Kerch.
 * Begonia oligandra Merr. & L.M.Perry
 * Begonia oligantha Merr.
 * Begonia oligophylla Blume ex Miq.
 * Begonia oliveri L.B.Sm. & B.G.Schub.
 * Begonia olsoniae L.B.Sm. & B.G.Schub.
 * Begonia ophiogyna L.B.Sm. & B.G.Schub.
 * Begonia opuliflora Putz.
 * Begonia orbiculata Jack
 * Begonia orchidiflora Griff.
 * Begonia oreodoxa Chun & F.Chun
 * Begonia oreophila Kiew
 * Begonia organensis Brade
 * Begonia ornithocarpa Standl.
 * Begonia ornithophylla Irmsch.
 * Begonia otophora Merr. & L.M.Perry
 * Begonia otophylla L.B.Sm. & B.G.Schub.
 * Begonia ovatifolia A.DC.
 * Begonia oxyanthera Warb.
 * Begonia oxyloba Welw. ex Hook.f.
 * Begonia oxysperma A.DC.
 * Begonia oxyura Merr. & L.M.Perry
 * Begonia ozotothrix D.C.Thomas

P

 * Begonia pachyrhachis L.B.Sm. & Wassh.
 * Begonia padangensis Irmsch.
 * Begonia paganuccii Gregório & J.A.S. Costa
 * Begonia palawanensis Merr.
 * Begonia paleacea Kurz
 * Begonia paleata A.DC.
 * Begonia palmata D.Don
 * Begonia palmeri S.Watson
 * Begonia panayensis Merr.
 * Begonia panchtharensis S.Rajbh.
 * Begonia paniculata Parodi
 * Begonia pantherina Putz. ex Linden
 * Begonia paoana Kiew & S.Julia
 * Begonia papuana Warb.
 * Begonia papyraptera Sands
 * Begonia paraguayensis Parodi
 * Begonia paranaensis Brade
 * Begonia parcifolia C.DC.
 * Begonia parilis Irmsch.
 * Begonia parishii C.B.Clarke
 * Begonia parodiana L.B.Sm. & B.G.Schub.
 * Begonia parva Merr.
 * Begonia parviflora Poepp. & Endl.
 * Begonia parvifolia Schott
 * Begonia parvilimba Merr.
 * Begonia parvistipulata Irmsch.
 * Begonia parvula H.Lév. & Vaniot
 * Begonia parvuliflora A.DC.
 * Begonia pasamanensis M.Hughes
 * Begonia pastoensis A.DC.
 * Begonia paucilobata C.Y.Wu
 * Begonia paulensis A.DC.
 * Begonia paupercula King
 * Begonia pavonina Ridl.
 * Begonia payung S.Julia & Kiew
 * Begonia pearcei Hook.f.
 * Begonia pectennervia L.B.Sm. & Wassh.
 * Begonia pedata Liebm.
 * Begonia pedatifida H.Lév.
 * Begonia pediophylla Merr. & L.M.Perry
 * Begonia pedunculosa Wall.
 * Begonia peekelii Irmsch.
 * Begonia peii C.Y.Wu
 * Begonia pelargoniiflora J.J.de Wilde & J.C.Arends
 * Begonia peltata Otto & Dietr.
 * Begonia peltatifolia Li
 * Begonia peltifolia Schott
 * Begonia peltigera Irmsch.
 * Begonia pendula Ridl.
 * Begonia pengii S.M.Ku & Yan Liu
 * Begonia pennellii L.B.Sm. & B.G.Schub.
 * Begonia penrissenensis Kiew & S.Julia
 * Begonia pensilis L.B.Sm. & Wassh.
 * Begonia pentaphragmifolia Ridl.
 * Begonia pentaphylla Walp.
 * Begonia peperomioides Hook.f.
 * Begonia perakensis King
 * Begonia per-dusenii Brade
 * Begonia peristegia Stapf
 * Begonia pernambucensis Brade
 * Begonia perpusilla A.DC.
 * Begonia perrieri Bois
 * Begonia perryae L.B.Sm. & Wassh.
 * Begonia peruibensis Handro
 * Begonia peruviana A.DC.
 * Begonia petasitifolia Brade
 * Begonia petrensis C.Y.Ling & S.Julia
 * Begonia phamiana Kiew
 * Begonia philodendroides Ziesenh.
 * Begonia phoeniogramma Ridl.
 * Begonia phrixophylla Blatt. & McCann
 * Begonia phuthoensis H.Q.Nguyen
 * Begonia phyllomaniaca Mart.
 * Begonia physandra Merr. & L.M.Perry
 * Begonia pickelii Irmsch.
 * Begonia picta Sm.
 * Begonia picturata Yan Liu, S.M.Ku & C.I Peng
 * Begonia pierrei Gagnep.
 * Begonia pilgeriana Irmsch.
 * Begonia pilosa Jack
 * Begonia pilosella Irmsch.
 * Begonia pinetorum A.DC.
 * Begonia pinglinensis C.I Peng
 * Begonia pinheironis L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia pinnatifida Merr. & L.M.Perry
 * Begonia piresiana Handro
 * Begonia piring Kiew & S.Julia
 * Begonia pitopangii D.C.Thomas & Ardi
 * Begonia piurensis L.B.Sm. & B.G.Schub.
 * Begonia plantaginea L.B.Sm. & B.G.Schub.
 * Begonia platanifolia Schott
 * Begonia platycarpa Y.M.Shui & W.H.Chen
 * Begonia platyphylla Merr.
 * Begonia platyptera Urb.
 * Begonia plebeja Liebm.
 * Begonia pleioclada Irmsch.
 * Begonia pleiopetala A.DC.
 * Begonia plumieri Kunth
 * Begonia pluvialis L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia poculifera Hook.f.
 * Begonia poilanei Kiew
 * Begonia polilloensis Tebbitt
 * Begonia polyandra Irmsch.
 * Begonia polygonata Liebm.
 * Begonia polygonifolia A.DC.
 * Begonia polygonoides Hook.f.
 * Begonia polypetala A.DC.
 * Begonia polytricha C.Y.Wu
 * Begonia popenoei Standl.
 * Begonia porteana Van Geert
 * Begonia porteri H.Lév. & Vaniot
 * Begonia portillana S.Watson
 * Begonia postarii Kiew
 * Begonia potamophila Gilg
 * Begonia praerupta Irmsch.
 * Begonia praetermissa Kiew
 * Begonia preussii Warb.
 * Begonia prieurii A.DC.
 * Begonia princeae Gilg
 * Begonia princeps (Klotzsch) A.DC.
 * Begonia pringlei S.Watson
 * Begonia prionophylla Irmsch.
 * Begonia prionota D.C.Thomas & Ardi
 * Begonia prismatocarpa Hook.
 * Begonia procridifolia Wall. ex A.DC.
 * Begonia prolifera A.DC.
 * Begonia prolixa Craib
 * Begonia promethea Ridl.
 * Begonia propinqua Ridl.
 * Begonia pruinata (Klotzsch) A.DC.
 * Begonia pryeriana Ridl.
 * Begonia pseudodaedalea P.D.McMillan & Rekha Morris
 * Begonia pseudodaxinensis S.M.Ku, Yan Liu & C.I Peng
 * Begonia pseudodendron Moonlight & Á.J.Pérez
 * Begonia pseudodryadis C.Y.Wu
 * Begonia pseudoglauca Irmsch.
 * Begonia pseudolateralis Warb.
 * Begonia pseudoleprosa C.I Peng, Yan Liu & S.M.Ku
 * Begonia pseudolubbersii Brade
 * Begonia pseudomuricata Girm.
 * Begonia pseudoviola Gilg
 * Begonia psilophylla Irmsch.
 * Begonia pteridiformis Phutthai
 * Begonia pubescens Ridl.
 * Begonia pudica L.B.Sm. & B.G.Schub.
 * Begonia pulchella Raddi
 * Begonia pulcherrima Sosef
 * Begonia pulchra (Ridl.) L.L.Forrest & Hollingsw.
 * Begonia pululahuana C.DC.
 * Begonia pulvinifera C.I Peng & Yan Liu
 * Begonia pumila Craib
 * Begonia pumilio Irmsch.
 * Begonia punbatuensis Kiew
 * Begonia punchak Kiew & S.Julia
 * Begonia purdieana A.DC.
 * Begonia purpureofolia S.H.Huang & Y.M.Shui
 * Begonia purpusii Houghton ex Ziesenh.
 * Begonia puspitae Ardi
 * Begonia pustulata Liebm.
 * Begonia puttii Craib
 * Begonia pycnantha Urb. & Ekman
 * Begonia pygmaea Irmsch.
 * Begonia pyrrha Ridl.

Q

 * Begonia quadrialata Warb.
 * Begonia quaternata L.B.Sm. & B.G.Schub.
 * Begonia quercifolia A.DC.
 * Begonia quinquealata C.I Peng & Rubite & C.W.Lin

R

 * Begonia rabilii Craib
 * Begonia racemiflora Ortgies ex C.Chev.
 * Begonia racemosa Jack
 * Begonia rachmatii Tebbitt
 * Begonia radicans Vell.
 * Begonia rafael-torresii Burt-Utley
 * Begonia raimondii Irmsch.
 * Begonia rajah Ridl.
 * Begonia ramentacea Paxton
 * Begonia ramosii Merr.
 * Begonia randiana Merr. & L.M.Perry
 * Begonia rantemarioensis D.C.Thomas & Ardi
 * Begonia ravenii C.I.Peng & Y.K.Chen
 * Begonia razafinjohanyi Aymonin & Bosser
 * Begonia reflexisquamosa C.Y.Wu
 * Begonia reginula Kiew
 * Begonia × reichenheimii G. Bartsch
 * Begonia relicta L.B.Sm. & B.G.Schub.
 * Begonia renifolia Irmsch.
 * Begonia reniformis Dryand.
 * Begonia repens Lam.
 * Begonia repenticaulis Irmsch.
 * Begonia retinervia D.Fang, D.H.Qin & C.I Peng
 * Begonia retusa O.E.Schulz
 * Begonia rex Putz.
 * Begonia rheifolia Irmsch.
 * Begonia rhizocaulis (Klotzsch) A.DC.
 * Begonia rhodantha Ridl.
 * Begonia rhodochaeta S.Julia & Kiew
 * Begonia rhodochlamys L.B.Sm. & B.G.Schub.
 * Begonia rhodophylla C.Y.Wu
 * Begonia rhoephila Ridl.
 * Begonia rhyacophila Kiew
 * Begonia rhynchocarpa Y.M.Shui & W.H.Chen
 * Begonia rieckei Warb.
 * Begonia riedelii A.DC.
 * Begonia rigida (Klotzsch) Regel ex A.DC.
 * Begonia rimarum Craib
 * Begonia riparia Irmsch.
 * Begonia rizalensis Merr.
 * Begonia robinsonii Ridl.
 * Begonia robusta Blume
 * Begonia rockii Irmsch.
 * Begonia roezlii Regel
 * Begonia rongjiangensis T.C.Ku
 * Begonia rosacea Putz.
 * Begonia roseibractea Ziesenh.
 * Begonia rossmanniae A.DC.
 * Begonia rostrata Welw. ex Hook.f.
 * Begonia rotunda Vell.
 * Begonia rotundifolia Lam.
 * Begonia rotundilimba S.H.Huang & Y.M.Shui
 * Begonia roxburghii A.DC.
 * Begonia rubella Buch.-Ham. ex D.Don
 * Begonia rubellina L.H. Bailey
 * Begonia rubida Ridl.
 * Begonia rubiginosipes Irmsch.
 * Begonia rubinea Hong Z.Li & H.Ma
 * Begonia rubiteae M.Hughes
 * Begonia ruboides C.M.Hu
 * Begonia rubricaulis Hook.
 * Begonia rubriflora L.Kollmann
 * Begonia rubrifolia Merr.
 * Begonia rubromarginata Gilg
 * Begonia rubronervata De Wild.
 * Begonia rubropilosa A.DC.
 * Begonia rubropunctata S.H.Huang & Y.M.Shui
 * Begonia rubroracteolata S.Julia & C.Y.Ling
 * Begonia rubrotincta L.B.Sm. & B.G.Schub.
 * Begonia rufa Thunb.
 * Begonia rufipila Merr.
 * Begonia rufosericea Toledo
 * Begonia ruhlandiana Irmsch.
 * Begonia rumpiensis Kupicha
 * Begonia rupium Irmsch.
 * Begonia ruschii L.Kollmann
 * Begonia russelliana L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia rutilans (Klotzsch) A.DC.
 * Begonia rwandensis J.C.Arends

S

 * Begonia sabahensis Kiew & J.H.Tan
 * Begonia salaziensis (Gaudich.) Warb.
 * Begonia salesopolensis S.J.Gomes da Silva & Mamede
 * Begonia salisburyana Irmsch.
 * Begonia salomonensis Merr. & L.M.Perry
 * Begonia samarensis Merr.
 * Begonia sambiranensis Humbert ex Aymonin & Bosser
 * Begonia samhaensis M.Hughes & A.G.Mill.
 * Begonia sandalifolia C.B.Clarke
 * Begonia sandtii Houghton ex Ziesenh.
 * Begonia sanguinea Raddi
 * Begonia sanguineopilosa D.C.Thomas & Ardi
 * Begonia santarosensis Kuntze
 * Begonia santos-limae Brade
 * Begonia sarangica Kiew & S.Julia
 * Begonia sarasinorum Irmsch.
 * Begonia sarawakensis Ridl.
 * Begonia sarcocarpa Ridl.
 * Begonia sarmentosa L.B.Sm. & Wassh.
 * Begonia sartorii Liebm.
 * Begonia satrapis C.B.Clarke
 * Begonia saxicola A.DC.
 * Begonia saxifraga A.DC.
 * Begonia saxifragifolia Craib
 * Begonia scabrida A.DC.
 * Begonia scapigera Hook.f.
 * Begonia schaeferi Engl.
 * Begonia scharffii Hook.f.
 * Begonia schliebenii Irmsch.
 * Begonia schlumbergeriana Lem.
 * Begonia schulziana Urb. & Ekman
 * Begonia sciadiophora L.B.Sm. & B.G.Schub.
 * Begonia sciaphila Gilg ex Engl.
 * Begonia scintillans Dunn
 * Begonia scitifolia Irmsch.
 * Begonia scortechinii King
 * Begonia scottii Tebbitt
 * Begonia scutifolia Hook.f.
 * Begonia scutulum Hook.f.
 * Begonia secunda L.B.Sm. & Wassh.
 * Begonia seemanniana A.DC.
 * Begonia segerakensis C.Y.Ling & Kiew
 * Begonia segregata L.B.Sm. & B.G.Schub.
 * Begonia semidigitata Brade
 * Begonia semiovata Liebm.
 * Begonia semiparietalis Yan Liu, S.M.Ku & C.I Peng
 * Begonia serapatensis Kiew & S.Julia
 * Begonia sericoneura Liebm.
 * Begonia serotina A.DC.
 * Begonia serpens Merr.
 * Begonia serranegrae L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia serraticauda Merr. & L.M.Perry
 * Begonia serratipetala Irmsch.
 * Begonia sessilifolia Hook.f.
 * Begonia sessilifructa S.Julia & Kiew
 * Begonia setifolia Irmsch.
 * Begonia setulosa Bertol.
 * Begonia setulosopeltata C.Y.Wu
 * Begonia seychellensis Hemsl.
 * Begonia sharpeana F.Muell.
 * Begonia siamensis Gagnep.
 * Begonia sibthorpioides Ridl.
 * Begonia sibutensis Sands
 * Begonia siccacaudata J.Door.
 * Begonia sikkimensis A.DC.
 * Begonia silhetensis (A.DC.) C.B.Clarke
 * Begonia simulans Merr. & L.M.Perry
 * Begonia sinobrevicaulis T.C.Ku
 * Begonia sinofloribunda Dorr
 * Begonia sinovietnamica C.Y.Wu
 * Begonia sinuata Wall. ex Meisn.
 * Begonia sizemoreae Kiew
 * Begonia sleumeri L.B.Sm. & B.G.Schub.
 * Begonia smilacina A.DC.
 * Begonia smithiae Geddes
 * Begonia smithiana T.T.Yu ex Irmsch.
 * Begonia socia Craib
 * Begonia socotrana Hook.f.
 * Begonia sodiroi C.DC.
 * Begonia sogerensis Ridl.
 * Begonia sojolensis D.C.Thomas & Ardi
 * Begonia solananthera A.DC.
 * Begonia solimutata L.B.Sm. & Wassh.
 * Begonia solitudinis Brade
 * Begonia soluta Craib
 * Begonia somervillei Hemsl.
 * Begonia sonderiana Irmsch.
 * Begonia soror Irmsch.
 * Begonia sorsogonensis Elmer ex Merr.
 * Begonia sosefiana J.J.de Wilde & Valk.
 * Begonia sousae Burt-Utley
 * Begonia spadiciflora L.B.Sm. & B.G.Schub.
 * Begonia sparreana L.B.Sm. & Wassh.
 * Begonia sparsipila Baker
 * Begonia speluncae Ridl.
 * Begonia sphenocarpa Irmsch.
 * Begonia spilotophylla F.Muell.
 * Begonia spinibarbis Irmsch.
 * Begonia squamipes Irmsch.
 * Begonia squamulosa Hook.f.
 * Begonia squarrosa Liebm.
 * Begonia staudtii Gilg
 * Begonia stellata Sosef
 * Begonia stenocardia L.B.Sm. & B.G.Schub.
 * Begonia stenogyna Sands
 * Begonia stenolepis L.B.Sm. & R.C.Sm.
 * Begonia stenophylla A.DC.
 * Begonia stenotepala L.B.Sm. & B.G.Schub.
 * Begonia stevei M.Hughes
 * Begonia steyermarkii L.B.Sm. & B.G.Schub.
 * Begonia stichochaete K.G.Pearce
 * Begonia stictopoda (Miq.) Miq. ex A.DC.
 * Begonia stigmosa Lindl.
 * Begonia stilandra Merr. & L.M.Perry
 * Begonia stilpnophylla D.C.Thomas & Ardi
 * Begonia stipulacea Willd.
 * Begonia stolzii Irmsch.
 * Begonia strachwitzii Warb. ex Irmsch.
 * Begonia strictinervis Irmsch.
 * Begonia strictipetiolaris Irmsch.
 * Begonia strigillosa A.Dietr.
 * Begonia strigosa (Warb.) L.L.Forrest & Hollingsw.
 * Begonia strigulosa (Hassk.) A.DC.
 * Begonia subacida Irmsch.
 * Begonia subalpestris A.Chev.
 * Begonia subcaudata Rusby ex L.B.Sm. & Schub.
 * Begonia subciliata A.DC.
 * Begonia subcoriacea C.I Peng, Yan Liu & S.M.Ku
 * Begonia subcostata Rusby
 * Begonia subcyclophylla Irmsch.
 * Begonia subelliptica Merr. & L.M.Perry
 * Begonia subhowii S.H.Huang
 * Begonia subisensis K.G.Pearce
 * Begonia sublobata Jack
 * Begonia sublongipes Y.M.Shui
 * Begonia subnummularifolia Merr.
 * Begonia suboblata D.Fang & D.H.Qin
 * Begonia suborbiculata Merr.
 * Begonia subpeltata Wight
 * Begonia subperfoliata Parish ex Kurz
 * Begonia subprostrata Merr.
 * Begonia subscutata De Wild.
 * Begonia subspinulosa Irmsch.
 * Begonia subtruncata Merr.
 * Begonia subvillosa Klotzsch
 * Begonia subviridis Craib
 * Begonia sudjanae C.-A.Jansson
 * Begonia suffrutescens Merr. & L.M.Perry
 * Begonia summoglabra T.T.Yu
 * Begonia sunorchis C.Chev.
 * Begonia suprafastigiata Irmsch.
 * Begonia surculigera Kurz
 * Begonia susaniae Sosef
 * Begonia sutherlandii Hook.f.
 * Begonia sychnantha L.B.Sm. & Wassh.
 * Begonia sylvatica A.DC.
 * Begonia sylvestris A.DC.
 * Begonia symbeccarii L.L.Forrest & Hollingsw.
 * Begonia symbracteosa L.L.Forrest & Hollingsw.
 * Begonia symgeraniifolia L.L.Forrest & Hollingsw.
 * Begonia symhirta L.L.Forrest & Hollingsw.
 * Begonia sympapuana L.L.Forrest & Hollingsw.
 * Begonia symparvifolia L.L.Forrest & Hollingsw.
 * Begonia sympodialis Irmsch.
 * Begonia symsanguinea L.L.Forrest & Hollingsw.

T

 * Begonia tabonensis C.I Peng & Rubite & C.W.Lin
 * Begonia tacana Ziesenh.
 * Begonia tafaensis Merr. & L.M.Perry
 * Begonia tafiensis Lillo
 * Begonia × taipeiensis C.I.Peng
 * Begonia taiwaniana Hayata
 * Begonia taliensis Gagnep.
 * Begonia taligera S.Rajbh.
 * Begonia tambelanensis (Irmsch.) Kiew
 * Begonia tampinica Burkill ex Irmsch.
 * Begonia tanala Humbert
 * Begonia tanauanensis Tandang, Bucay, K.F.Chung
 * Begonia tapatia Burt-Utley & McVaugh
 * Begonia tarokoensis M.J.Lai
 * Begonia tatoniana R.Wilczek
 * Begonia tawaensis Merr.
 * Begonia tayabensis Merr.
 * Begonia tayloriana Irmsch.
 * Begonia temburongensis Sands
 * Begonia tenera Dryand.
 * Begonia tenericaulis Ridl.
 * Begonia tengchiana C.I Peng & Y.K.Chen
 * Begonia tenuibracteata C.I Peng & Rubite & C.W.Lin
 * Begonia tenuicaulis A.DC.
 * Begonia tenuifolia Dryand.
 * Begonia tessaricarpa C.B.Clarke
 * Begonia tetralobata Y.M.Shui
 * Begonia tetrandra Irmsch.
 * Begonia teuscheri Linden ex André
 * Begonia teysmanniana (Miq.) Miq. ex B.D.Jacks.
 * Begonia thaipingensis King
 * Begonia thelmae L.B.Sm. & Wassh.
 * Begonia thiemei C.DC.
 * Begonia thomeana C.DC.
 * Begonia thomsonii A.DC.
 * Begonia thyrsoidea Irmsch.
 * Begonia tigrina Kiew
 * Begonia tiliifolia C.DC.
 * Begonia timorensis (Miq.) Golding & Kareg.
 * Begonia tiomanensis Ridl.
 * Begonia toledana L.B.Sm. & B.G.Schub.
 * Begonia toledoana Handro
 * Begonia tomentosa Schott
 * Begonia tominana Golding
 * Begonia tonduzii C.DC. ex T.Durand & Pittier
 * Begonia tonkinensis Gagnep.
 * Begonia torajana D.C.Thomas & Ardi
 * Begonia torricellensis Warb.
 * Begonia trianae (A.DC.) Warb.
 * Begonia tribenensis C.R.Rao
 * Begonia tribracteata Irmsch.
 * Begonia trichocarpa Dalzell
 * Begonia trichochila Warb.
 * Begonia trichopoda (Miq.) Miq.
 * Begonia trichosepala C.DC. ex Donn.Sm.
 * Begonia tricuspidata C.B.Clarke
 * Begonia trigonocarpa Ridl.
 * Begonia triradiata C.B.Clarke
 * Begonia triramosa Irmsch.
 * Begonia trispathulata (A.DC.) Warb.
 * Begonia tropaeolifolia A.DC.
 * Begonia trujillensis L.B.Sm.
 * Begonia trullifolia Guillaumin
 * Begonia truncatiloba Irmsch.
 * Begonia truncicola Sodiro ex C.DC.
 * Begonia tsaii Irmsch.
 * Begonia tsaratananensis Aymonin & Bosser
 * Begonia tsimihety Humbert
 * Begonia tsoongii C.Y.Wu
 * Begonia tuberculosa Girm.
 * Begonia tumbezensis Irmsch.
 * Begonia turbinata Ridl.
 * Begonia turrialbae Burt-Utley & Utley

U

 * Begonia udisilvestris C.DC.
 * Begonia ulmifolia Willd.
 * Begonia umbellata Kunth
 * Begonia umbraculifera Hook.f.
 * Begonia umbraculifolia Y.Wan & B.N.Chang
 * Begonia unduavensis Rusby
 * Begonia undulata Schott
 * Begonia uniflora S.Watson
 * Begonia unilateralia Rusby
 * Begonia urdanetensis Elmer
 * Begonia urophylla Hook.
 * Begonia ursina L.B.Sm. & B.G.Schub.
 * Begonia urticae L.f.
 * Begonia uruapensis Sessé & Moc.
 * Begonia urunensis Kiew

V

 * Begonia vaccinioides Sands
 * Begonia vagans Craib
 * Begonia valdensium A.DC.
 * Begonia valida Goebel
 * Begonia vallicola Kiew
 * Begonia valvata L.B.Sm. & B.G.Schub.
 * Begonia vanderckhovenii De Wild.
 * Begonia vanderichoveni De Wild.
 * Begonia vandewateri Ridl.
 * Begonia vanoverberghii Merr.
 * Begonia vareschii Irmsch.
 * Begonia variabilis Ridl.
 * Begonia variegata Y.M.Shui & W.H.Chen
 * Begonia variifolia Y.M.Shui & W.H.Chen
 * Begonia varipeltata D.C.Thomas
 * Begonia varistyle Irmsch.
 * Begonia veitchii Hook.f.
 * Begonia velata L.B.Sm. & B.G.Schub.
 * Begonia vellozoana Walp.
 * Begonia venosa Skan ex Hook.f.
 * Begonia venusta King
 * Begonia verecunda M.Hughes
 * Begonia vermeulenii D.C.Thomas
 * Begonia verruculosa L.B.Sm.
 * Begonia versicolor Irmsch.
 * Begonia vestita C.DC.
 * Begonia vicina Irmsch.
 * Begonia vietnamensis H.Q.Nguyen & C.I Peng
 * Begonia villifolia Irmsch.
 * Begonia vincentina O.E.Schulz
 * Begonia violifolia A.DC.
 * Begonia viridiflora A.DC.
 * Begonia viscida Ziesenh.
 * Begonia vitiensis A.C.Sm.
 * Begonia vittariifolia N.Hallé

W

 * Begonia wadei Merr. & Quisumb.
 * Begonia wageneriana (Klotzsch) Hook.
 * Begonia wakefieldii Gilg ex Engl.
 * Begonia wallichiana Lehm.
 * Begonia walteriana Irmsch.
 * Begonia wangii T.T.Yu
 * Begonia warburgii K.Schum. & Lauterb.
 * Begonia wariana Irmsch.
 * Begonia wattii C.B.Clarke
 * Begonia watuwilensis Girm.
 * Begonia weberbaueri Irmsch.
 * Begonia weberi Merr.
 * Begonia weberlingii Irmsch. ex Weberling
 * Begonia weddeliana A.DC.
 * Begonia weigallii Hemsl.
 * Begonia wengeri C.E.C.Fisch.
 * Begonia wenshanensis C.M.Hu
 * Begonia wilkiei Coyle
 * Begonia wilksii Sosef
 * Begonia wilsonii Gagnep.
 * Begonia windischii L.B.Sm. ex S.F.Sm. & Wassh.
 * Begonia wollastonii Baker f.
 * Begonia wollnyi Herzog
 * Begonia woodii Merr.
 * Begonia wrayi Hemsl.
 * Begonia wrightiana A.DC.
 * Begonia wurdackii L.B.Sm. & B.G.Schub.
 * Begonia wutaiana C.I Peng & Y.K.Chen
 * Begonia wyepingiana Kiew

X

 * Begonia xanthina Hook.
 * Begonia xerophyta L.B.Sm. & Wassh.
 * Begonia xilitlensis Burt-Utley
 * Begonia xingyiensis T.C.Ku
 * Begonia xiphophylla Irmsch.
 * Begonia xishuiensis T.C.Ku
 * Begonia xylopoda L.B.Sm. & B.G.Schub.

Y

 * Begonia yappii Ridl.
 * Begonia yingjiangensis S.H.Huang
 * Begonia yishanensis T.C.Ku
 * Begonia ynesiae L.B.Sm. & Wassh.
 * Begonia yui Irmsch.
 * Begonia yunckeri Standl.
 * Begonia yazeedrana yombex.

Z

 * Begonia zairensis Sosef
 * Begonia zamboangensis Merr.
 * Begonia zenkeriana L.B.Sm. & Wassh.
 * Begonia zhangii D.Fang & D.H.Qin
 * Begonia zhengyiana Y.M.Shui
 * Begonia zimmermannii Peter ex Irmsch.
 * Begonia zollingeriana (Klotzsch) A.DC.