| Begoniaceae | |
Begonia abaculoides
| Ziesenh. | Begonian 35(12): 258, 256–257, f. 1–5 | 1968 |
| Begoniaceae | |
Begonia abbottii
| Urb. | Repert. Spec. Nov. Regni Veg. 18: 192 | 1922 |
| Begoniaceae | |
Begonia abbreviata
| C.-I Peng | Phytotaxa 222(2): 86 | 2015 |
| Begoniaceae | |
Begonia abdullahpieei
| Kiew | Begonias Peninsular Malaysia 252 | 2005 |
| Begoniaceae | |
Begonia aberrans
| Irmsch. | Webbia 9: 483 | 1953 |
| Begoniaceae | |
Begonia aborensis
| Dunn | Bull. Misc. Inform. Kew 109 | 1920 |
| Begoniaceae | |
Begonia abyssinica
| Cufod. | Senckenberg. Biol. 41: 382, pl. 64: f. 9 | 1998 |
| Begoniaceae | |
Begonia acaulis
| Merr. & L.M. Perry | J. Arnold Arbor. 24(1): 43, f. 1, l–q | 1943 |
| Begoniaceae | |
Begonia acerifolia
| Kunth | Nov. Gen. Sp. (quarto ed.) 7: 186, t. 644 | 1825 |
| Begoniaceae | |
Begonia aceroides
| Irmsch. | Bot. Jahrb. Syst. 76: 100 | 1953 |
| Begoniaceae | |
Begonia acetosa
| Vell. | Fl. Flumin. Icon. 10, pl. 50 | 1827 |
| Begoniaceae | |
Begonia acetosella
| Craib | Bull. Misc. Inform. Kew 1912: 153 | 1912 |
| Begoniaceae | |
Begonia acida
| Vell. | Fl. Flumin. Icon. 10, pl. 49 | 1827 |
| Begoniaceae | |
Begonia acida
| Mart. ex DC. | Fl. Bras. 4(1): 366 | 1961 |
| Begoniaceae | * |
Begonia acida
| A. DC. | Prodr. 15(1): 364 | 1864 |
| Begoniaceae | |
Begonia aconitifolia
| A. DC. | Ann. Sci. Nat., Bot., sér. 4, 11: 127 | 1859 |
| Begoniaceae | |
Begonia acrensis
| Irmsch. | Bot. Jahrb. Syst. 74: 605 | 1949 |
| Begoniaceae | |
Begonia aculeata
| Walp. | Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 16(2): 409 | 1846 |
| Begoniaceae | |
Begonia acuminata
| Dryand. | Trans. Linn. Soc. London 1: 166, pl. 14, f. 5–6 | 1791 |
| Begoniaceae | |
Begonia acuminatissima
| Merr. | Philipp. J. Sci. 6: 395–396 | 1911-1912 |
| Begoniaceae | |
Begonia acutangula
| L.H. Bailey & E.Z. Bailey | Hortus Second 97 | 1941 |
| Begoniaceae | ! |
Begonia acutifolia
| Jacq. | Collectanea 1: 128 | 1786 [1787] |
| Begoniaceae | ** |
Begonia acutifolia
| A. DC. | Prodr. 15(1): 378 | 1864 |
| Begoniaceae | * |
Begonia acutifolia
| Sw. | Fl. Ind. Occid. 2: 994 | 1800 |
| Begoniaceae | |
Begonia acutiloba
| Liebm. | Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn 1852(1): 14 | 1853 [1852] |
| Begoniaceae | |
Begonia acutitepala
| K.Y. Guan & D.K. Tian | Acta Bot. Yunnan. 22(2): 129–131, pl. 1 | 2000 |
| Begoniaceae | |
Begonia addrinii
| S. Julia & Kiew | Gard. Bull. Singapore 68(2): 258, f. 1 | 2016 |
| Begoniaceae | |
Begonia adenodes
| Irmsch. | Webbia 9: 478, pl. 2 | 1953 |
| Begoniaceae | |
Begonia adenopoda
| Lem. | Jard. Fleur. 2(misc.): 17 | 1852 |
| Begoniaceae | |
Begonia adenostegia
| Stapf | Trans. Linn. Soc. London, Bot. 4: 164 | 1894 |
| Begoniaceae | |
Begonia adiantiformis
| Toledo | Arq. Bot. Estado São Paulo 2(3): 62, pl. 17 | 1946 |
| Begoniaceae | |
Begonia admirabilis
| Brade | Arch. Jard. Bot. Rio de Janeiro 10: 136, pl. 6 | 1950 |
| Begoniaceae | |
Begonia adolfi-friderici
| Gilg ex Mildbr. | Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot. 2: 574 | 1913 |
| Begoniaceae | |
Begonia × adonis
| auct. | Gard. Chron., ser. 3 1: 747 | 1887 |
| Begoniaceae | |
Begonia adpressa
| Sosef | Wageningen Agric. Univ. Pap. 91(4): 126, f. 2 | 1991 [1992] |
| Begoniaceae | |
Begonia adscendens
| C.B. Clarke | J. Linn. Soc., Bot. 25: 26, pl. 13 | 1890 |
| Begoniaceae | |
Begonia aenea
| Linden & André | Cat. Général 2 | 1871 |
| Begoniaceae | |
Begonia aequata
| A. Gray | U.S. Expl. Exped., Phan. 15: 658 | 1854 |
| Begoniaceae | |
Begonia aequatoguineensis
| Sosef & Nguema | Blumea 55(1): 91 | 2010 |
| Begoniaceae | |
Begonia aequatorialis
| L.B. Sm. & B.G. Schub. | Mem. New York Bot. Gard. 8: 36 | 1952 |
| Begoniaceae | |
Begonia aequilateralis
| Irmsch. | Mitt. Inst. Allg. Bot. Hamburg 8: 134, pl. 7 | 1929 |
| Begoniaceae | |
Begonia aeranthos
| L.B. Sm. & B.G. Schub. | Mem. New York Bot. Gard. 8(1): 36–37, f. 2a–e | 1952 |
| Begoniaceae | |
Begonia affinis
| Merr. | Philipp. J. Sci. 7: 308 | 1912 |
| Begoniaceae | |
Begonia afrakensis
| (Gibbs) L.L. Forrest & Hollingsw. | Pl. Syst. Evol. 241: 208 | 2003 |
| Begoniaceae | |
Begonia afromigrata
| J.J. de Wilde | Taxon 60(6): 1686–1690 | 2011 |
| Begoniaceae | |
Begonia aggeloptera
| N. Hallé | Adansonia, n.s. 12: 371, pl. 8 | 1972 |
| Begoniaceae | |
Begonia agrial
| Rojas Acosta | Bull. Géogr. Bot. 295: 215 | 1914 |
| Begoniaceae | |
Begonia aguabuenensis
| Burt-Utley & Utley | Phytoneuron 2012–74: 13–14, f. 6 | 2012 |
| Begoniaceae | |
Begonia aguiabrancensis
| Kollmann | Rodriguésia 59(1): 155 | 2008 |
| Begoniaceae | |
Begonia aguilarii
| Jara & Zabala-Rivera | Novon 26(4): 356–359, f. 1–3 | 2018 |
| Begoniaceae | |
Begonia agusanensis
| Merr. | Philipp. J. Sci. 6: 377–378 | 1911 |
| Begoniaceae | |
Begonia aiensis
| C.W.Lin & C.-I Peng | Taiwania 62(3): 219 | 2017 |
| Begoniaceae | |
Begonia aikrono
| H.P. Wilson & Jimbo | Gard. Bull. Singapore 72(2): 276, f. 1-2 | 2020 |
| Begoniaceae | |
Begonia alba
| Merr. | Philipp. J. Sci. 10: 45 | 1915 |
| Begoniaceae | |
Begonia alba-coccinea
| hort. | 1: 378 | 1847 |
| Begoniaceae | |
Begonia albida-setulosa
| Hassk. | Cat. Hort. Bot. Bogor. 313 | 1844 |
| Begoniaceae | |
Begonia albido-setulosa
| Hassk. | Hort. Bogor. Descr. 313 | 1858 |
| Begoniaceae | |
Begonia albidula
| Brade | Arch. Jard. Bot. Rio de Janeiro 10: 137, pl. 7 | 1950 |
| Begoniaceae | |
Begonia albiflora
| hort. ex Klotzsch | Ber. Bekanntm. Verh. Königl. Preuss. Akad. Wiss. Berlin 126 | 1854 |
| Begoniaceae | |
Begonia albobracteata
| Ridl. | Trans. Linn. Soc. London, Bot. 9: 60 | 1916 |
| Begoniaceae | |
Begonia albococcinea
| Hook. | Bot. Mag. 71: , t. 4172 | 1845 |
| Begoniaceae | |
Begonia albo-coccinea
| Hook. | Bot. Mag. 71: pl. 4172 | 1845 |
| Begoniaceae | |
Begonia albomaculata
| C. DC. | Bol. Mus. Goeldi Hist. Nat. Ethnogr. 4: 593 | 1906 |
| Begoniaceae | |
Begonia × albopicta
| W. Bull | Retail List New Beautiful Rare Pl. 210: 13 | 1885 |
| Begoniaceae | |
Begonia albopicta
| W. Bull | Cat. New Beautiful Rare Pl. 210: 13 | 1885 |
| Begoniaceae | |
Begonia alcarrasica
| J. Sierra | Revista Jard. Bot. Nac. Univ. Habana 10: 104 | 1989 |
| Begoniaceae | |
Begonia alchemilloides
| Meisn. ex A. DC. | Ann. Sci. Nat., Bot., sér. 4, 11: 125 | 1859 |
| Begoniaceae | |
Begonia alemanii
| Brade | Rodriguésia 18: 30, pl. 1 | 1945 |
| Begoniaceae | |
Begonia alepensis
| A. Chev. | Bull. Soc. Bot. France 58(Mem ser 8): 174 | 1911 [1912] |
| Begoniaceae | |
Begonia algaia
| L.B. Sm. & Wassh. | Phytologia 52: 441 | 1983 |
| Begoniaceae | |
Begonia alice-clarkiae
| Ziesenh. | Begonian 43(3): 65–67, f. 1–18 | 1976 |
| Begoniaceae | |
Begonia aliciae
| C.E.C. Fisch. | Bull. Misc. Inform. Kew 247 | 1939 |
| Begoniaceae | |
Begonia alicida
| C.B. Clarke ex Hook. f. | Fl. Brit. India 2: 637 | 1879 |
| Begoniaceae | |
Begonia allenii
| Standl. | Ann. Missouri Bot. Gard. 25(4): 830–831 | 1938 |
| Begoniaceae | |
Begonia almedana
| Burt-Utley & Utley | Novon 9(4): 485, f. 2 | 1999 |
| Begoniaceae | |
Begonia alnifolia
| A. DC. | Ann. Sci. Nat., Bot., sér. 4, 11: 133 | 1859 |
| Begoniaceae | |
Begonia alpina
| L.B. Sm. & Wassh. | Phytologia 54: 469 | 1984 |
| Begoniaceae | |
Begonia altamiroi
| Brade | Arch. Jard. Bot. Rio de Janeiro 8: 230, pl. 4 | 1948 |
| Begoniaceae | |
Begonia altimontana
| E.L. Jacques | Phytotaxa 561(2): 139, f. 1–3 | 2022 |
| Begoniaceae | |
Begonia altissima
| Ridl. | J. Fed. Malay States Mus. 8(4): 39 | 1917 |
| Begoniaceae | |
Begonia altoperuviana
| A. DC. | Ann. Sci. Nat., Bot., sér. 4, 11: 123 | 1859 |
| Begoniaceae | |
Begonia alvarezii
| Merr. | Philipp. J. Sci. 6: 405 | 1911 |
| Begoniaceae | |
Begonia alveolata
| T.T. Yu | Bull. Fan Mem. Inst. Biol., n.s. 1(2): 121 | 1948 |
| Begoniaceae | |
Begonia × amabilis
| Linden | Hort. Linden. 1: t. 1 | 1859 |
| Begoniaceae | |
Begonia amabilis
| Linden | Hort. Linden. 1: , pl. 1 | 1859 |
| Begoniaceae | |
Begonia ambanizanensis
| Scherber. & J. Duruisseau | Adansonia, sér. 3, 41(7): 60–62, figs. 1–2 | 2019 |
| Begoniaceae | |
Begonia ambodiforahensis
| Scherber. & J. Duruisseau | Adansonia, sér. 3, 41(7): 62–64, figs. 1, 3 | 2019 |
| Begoniaceae | |
Begonia × ameliae
| Bruant ex Duch. | J. Soc. Natl. Hort. France 1886: 153 | 1886 |
| Begoniaceae | |
Begonia amidalae
| C.W. Lin & C.-I Peng | Phytotaxa 191(1): 129 | 2014 |
| Begoniaceae | |
Begonia amoeboides
| Moonlight | Phytotaxa 381(1): 119-121, f. 1–2, 5 | 2018 |
| Begoniaceae | |
Begonia amoena
| Wall. ex A. DC. | Prodr. 15(1): 327 | 1864 |
| Begoniaceae | |
Begonia amoena
| Wall. | Numer. List 129: no. 3682 | 1831 |
| Begoniaceae | |
Begonia amphioxus
| Sands | Bot. Mag. (Kew Mag.) 7: 77, pl. 149 | 1990 |
| Begoniaceae | |
Begonia ampla
| Hook. f. | Fl. Trop. Afr. 2: 574 | 1871 |
| Begoniaceae | |
Begonia anaimalaiensis
| Bedd. | Madras J. Lit. Sci., ser. 3 1: 48 | 1864 |
| Begoniaceae | |
Begonia anamalayana
| Bedd. | Trans. Linn. Soc. London 25: 217 | 1865 |
| Begoniaceae | |
Begonia anceps
| Irmsch. | Notes Roy. Bot. Gard. Edinburgh 21(1): 35 | 1951 |
| Begoniaceae | |
Begonia andamensis
| Parish ex C.B. Clarke | Fl. Brit. India 2: 650 | 1879 |
| Begoniaceae | |
Begonia andersonii
| hort. | Begonian 16: 104, pl. 5 | 1949 |
| Begoniaceae | |
Begonia andersonii
| Kiew & S. Julia | Gard. Bull. Singapore 58: 204 | 2007 |