| Convolvulaceae | |
Exogonium arenarium
| Choisy | Mém. Soc. Phys. Genève 8: 129, t. 1 | 1838 |
| Convolvulaceae | |
Exogonium argentifolium
| (A. Rich. ex Sagra) House | Bull. Torrey Bot. Club 35(3): 102 | 1908 |
| Convolvulaceae | ! |
Exogonium bracteatum
| (Cav.) Choisy | Mém. Soc. Phys. Genève 6: 443 | 1834 |
| Convolvulaceae | ** |
Exogonium bracteatum
| (Cav.) Choisy ex G. Don | Gen. Hist. 4: 264 | 1838 |
| Convolvulaceae | |
Exogonium concolorum
| Matuda | Anales Inst. Biol. Univ. Nac. México 36: 116 | 1965 |
| Convolvulaceae | |
Exogonium conzattii
| (Greenm.) House | Bull. Torrey Bot. Club 35(3): 102 | 1908 |
| Convolvulaceae | ** |
Exogonium corimbosum
| Sessé & Moc. ex O'Donell | Lilloa 29: 71 | 1959 |
| Convolvulaceae | |
Exogonium cubense
| House | Bull. Torrey Bot. Club 35(3): 105 | 1908 |
| Convolvulaceae | ** |
Exogonium curviflorum
| Sessé & Moc. ex Choisy | Prodr. 9: 336 | 1845 |
| Convolvulaceae | |
Exogonium dumosum
| Benth. | Pl. Hartw. 46 | 1840 |
| Convolvulaceae | |
Exogonium eggersiana
| Peter | Nat. Pflanzenfam. 4: 30 | 1891 |
| Convolvulaceae | |
Exogonium eggersii
| House | Bull. Torrey Bot. Club 35(3): 104 | 1908 |
| Convolvulaceae | |
Exogonium eriospermum
| (Desr.) Choisy | Conv. Rar. 130 | 1837 |
| Convolvulaceae | |
Exogonium filiformis
| (Jacq.) Choisy | Mém. Soc. Phys. Genève 8: 129 | 1838 |
| Convolvulaceae | |
Exogonium fuchsioides
| (Griseb.) House | Bull. Torrey Bot. Club 35: 101 | 1908 |
| Convolvulaceae | |
Exogonium incertum
| Britton | Mem. Torrey Bot. Club 16: 94 | 1920 |
| Convolvulaceae | |
Exogonium jalapoides
| (Griseb.) House | Bull. Torrey Bot. Club 35(3): 101 | 1908 |
| Convolvulaceae | |
Exogonium leuconeurum
| (Urb.) House | Bull. Torrey Bot. Club 35(3): 106 | 1908 |
| Convolvulaceae | |
Exogonium luteum
| House | Bull. Torrey Bot. Club 35(3): 103, pl.2, f.c. | 1908 |
| Convolvulaceae | |
Exogonium microdactylum
| (Griseb.) House | Bull. Torrey Bot. Club 35(3): 102 | 1908 |
| Convolvulaceae | |
Exogonium mirandinum
| Pittier | J. Washington Acad. Sci. 21(7): 143 | 1931 |
| Convolvulaceae | |
Exogonium olivae
| Bárcena | Viaje Cav. Cacahuam. 29 | 1844 |
| Convolvulaceae | |
Exogonium pedatum
| Choisy | Mém. Soc. Phys. Genève 8: 130 | 1838 |
| Convolvulaceae | |
Exogonium purga
| (Wender.) Benth. | Pl. Hartw. 46 | 1840 |
| Convolvulaceae | |
Exogonium racemosum
| (Poir.) Choisy | Mém. Soc. Phys. Genève 8: 128 | 1838 |
| Convolvulaceae | |
Exogonium repandum
| (Jacq.) Choisy | Mém. Soc. Phys. Genève 8: 128 | 1838 |
| Convolvulaceae | |
Exogonium retropilosum
| Pittier | J. Washington Acad. Sci. 21(7): 143 | 1931 |
| Convolvulaceae | |
Exogonium rudolphii
| (Roem. & Schult.) House | Bull. Torrey Bot. Club 35(3): 99 | 1908 |
| Convolvulaceae | |
Exogonium solanifolium
| (L.) Britton | Brooklyn Bot. Gard. Mem. 1: 82 | 1918 |
| Convolvulaceae | |
Exogonium spicatum
| (Kunth) Choisy | Mém. Soc. Phys. Genève 8: 50 | 1837 |
| Convolvulaceae | |
Exogonium steerei
| Standl. | Publ. Carnegie Inst. Wash. 461(4): 83 | 1935 |
| Convolvulaceae | ** |
Exogonium uhdeanum
| Fenzl ex Hallier f. | Bot. Jahrb. Syst. 16(4–5): 559 | 1893 |
| Convolvulaceae | ** |
Exogonium umbellatum
| Moc. & Sessé ex Choisy | Prodr. 9: 336 | 1845 |
| Convolvulaceae | |
Exogonium velutifolium
| House | Bull. Torrey Bot. Club 35(3): 100 | 1908 |
| Convolvulaceae | |
Exogonium verruculosum
| Pittier | J. Washington Acad. Sci. 21(7): 142 | 1931 |
| Convolvulaceae | |
Exogonium villosum
| (Choisy) Peter | Nat. Pflanzenfam. IV(3a): 28 | 1897 [1891] |
| Convolvulaceae | |
Exogonium viridiflorum
| House | Bull. Torrey Bot. Club 35(4): 106 | 1908 |
| Convolvulaceae | |
Exogonium woronovii
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 11(5): 171–172 | 1932 |
| Convolvulaceae | |
Exogonium wrightii
| House | Bull. Torrey Bot. Club 35(3): 99 | 1908 |