| Crescentia regia Seem., 1862 |
| Crescentia spathulata Miers, 1868 |
| Crescentia ternata Sessé & Moc., 1889 |
| Crescentia toxicaria Tussac, 1827 |
| Crescentia trifolia Blanco, 1837 |
| Crescentieae G. Don, 1838 |
| Cuspidaria DC., 1838 |
| Cuspidaria hibiscifolia (Cham.) Bureau ex Schum., 1894 |
| Cuspidaria inaequalis (DC. ex Splitg.) L.G.Lohmann, 2008 |
| Cybistax Mart. ex Meisn., 1840 |
| Cybistax donnell-smithii (Rose) Seibert, 1940 |
| Cybistax macrocarpa Benth., 1876 |
| Cybistax millsii Miranda, 1961 |
| Cydista Miers, 1863 |
| Cydista aequinoctialis (L.) Miers, 1863 |
| Cydista aequinoctialis var. aequinoctialis (L.) Miers, 1863 |
| Cydista aequinoctialis var. hirtella (Benth.) A.H. Gentry, 1973 |
| Cydista amoena Miers, 1863 |
| Cydista diversifolia (Kunth) Miers, 1863 |
| Cydista heterophylla Seibert , 1940 |