| Caesalpinia watsonii Fisher, 1893 |
| Caesalpinia wootonii (Britton) Eifert, 1975 |
| Caesalpinia yucatanensis Greenm., 1907 |
| Caesalpinia yucatanensis subsp. chiapensis G.P. Lewis, 1998 |
| Caesalpinia yucatanensis subsp. yucatanensis Greenm., 1907 |
| Caesalpinieae Rchb., 1832 |
| Caesalpinioideae DC., 1825 |
| Caffrae Barneby & Krukoff, 1974 |
| Cajan Adans., 1763 |
| Cajan cajan (L.) Huth, 1893 |
| Cajan inodorum Medik., 1787 |
| Cajaninae Benth., 1837 |
| Cajanus Adans., 1763 |
| Cajanus bicolor DC., 1813 |
| Cajanus cajan (L.) Huth, 1893 |
| Cajanus indicus Spreng., 1826 |
| Calia Terán & Berland., 1832 |
| Calia conzattii (Standl.) Yakovlev, 1967 |
| Calia erythrosperma Terán & Berland., 1832 |
| Calia purpusii (Brandegee) Yakovlev, 1967 |