| Verbenaceae | |
Siphonanthus angustifolius
| Willd. | Sp. Pl. 1: 606 | 1798 |
| Verbenaceae | |
Siphonanthus assurgens
| Hiern | Cat. Afr. Pl. 1: 845 | 1900 |
| Verbenaceae | |
Siphonanthus botryodes
| Hiern | Cat. Afr. Pl. 1: 843 | 1896 |
| Verbenaceae | |
Siphonanthus capitata
| (Willd.) S. Moore | J. Linn. Soc., Bot. 37: 198 | 1905 |
| Verbenaceae | |
Siphonanthus capitatus
| (Willd.) S. Moore | J. Linn. Soc., Bot. 37: 198 | 1903 |
| Verbenaceae | |
Siphonanthus cavus
| (De Wild.) De Wild. | Bull. Jard. Bot. État Bruxelles 7: 164 | 1920 |
| Verbenaceae | |
Siphonanthus conglobata
| Hiern | Cat. Afr. Pl. 1: 840 | 1900 |
| Verbenaceae | |
Siphonanthus conglobatus
| (Baker) Hiern | Cat. Afr. Pl. 1: 840 | 1900 |
| Verbenaceae | |
Siphonanthus costulata
| Hiern | Cat. Afr. Pl. 1: 843 | 1900 |
| Verbenaceae | |
Siphonanthus costulatus
| Hiern | Cat. Afr. Pl. 1: 843 | 1900 |
| Verbenaceae | |
Siphonanthus cuneifolius
| (Baker) Hiern | Cat. Afr. Pl. 1: 841 | 1900 |
| Verbenaceae | |
Siphonanthus dumalis
| Hiern | Cat. Afr. Pl. 1: 843 | 1896 |
| Verbenaceae | |
Siphonanthus floribundus
| (R. Br.) Britten | Bot. Cook Voy. 3: 75 | 1905 |
| Verbenaceae | |
Siphonanthus formicarum
| (Gürke) Hiern | Cat. Afr. Pl. 1: 843 | 1900 |
| Verbenaceae | |
Siphonanthus glabra
| (E. Mey.) Hiern | Cat. Afr. Pl. 1: 842 | 1900 |
| Verbenaceae | |
Siphonanthus hastatus
| Roxb. | Fl. Ind. 3: 67 | 1832 |
| Verbenaceae | |
Siphonanthus indicus
| L. | Sp. Pl. 1: 109 | 1753 |
| Verbenaceae | |
Siphonanthus myricoides
| (Hochst.) Hiern | Cat. Afr. Pl. 1(4): 844–845 | 1900 |
| Verbenaceae | |
Siphonanthus nuxioides
| S. Moore | J. Linn. Soc., Bot. 37: 197 | 1905 |
| Verbenaceae | |
Siphonanthus rotundifolius
| (Oliv.) S. Moore | J. Linn. Soc., Bot. 37: 198 | 1905 |
| Verbenaceae | |
Siphonanthus saanguinea
| Hiern | Cat. Afr. Pl. 1: 839 | 1900 |
| Verbenaceae | * |
Siphonanthus sanguineus
| (Baker) Hiern | Cat. Afr. Pl. 1: 839 | 1900 |
| Verbenaceae | |
Siphonanthus splendens
| (G. Don) Hiern | Cat. Afr. Pl. 1: 841 | 1900 |
| Verbenaceae | |
Siphonanthus strictus
| (Baker) Hiern | Cat. Afr. Pl. 1: 840 | 1900 |
| Verbenaceae | |
Siphonanthus trichotomum
| (Thunb.) Nakai | Bot. Mag. (Tokyo) 36(422): 24–25 | 1922 |
| Verbenaceae | |
Siphonanthus triphyllus
| Hiern ex S. Moore | J. Bot. 1903: 405 | 1903 |
| Verbenaceae | |
Siphonanthus volubilis
| (P. Beauv.) Hiern | Cat. Afr. Pl. 1: 842 | 1900 |
| Verbenaceae | |
Siphonanthus welwitschii
| (Gürke) Hiern | Cat. Afr. Pl. 1: 889 | 1900 |
| Verbenaceae | |
Siphonanthus yakusimensis
| Nakai | Trees Shrubs Japan 1: 346 | 1922 |