| Poinciana californica (A. Gray) Rose, 1911 |
| Poinciana compressa Sessé & Moc. ex G. Don, 1832 |
| Poinciana coriaria Jacq., 1763 |
| Poinciana elatior Sessé & Moc., 1888 |
| Poinciana horrida Sessé & Moc., 1888 |
| Poinciana melanadenia Rose, 1911 |
| Poinciana mexicana (A. Gray) Rose, 1911 |
| Poinciana palmeri (S. Watson) Rose, 1911 |
| Poinciana pannosa (Brandegee) Rose, 1911 |
| Poinciana placida (Brandegee) Rose, 1911 |
| Poinciana pulcherrima L., 1753 |
| Poinciana regia Bojer ex Hook., 1829 |
| Poinciana sessiliflora (S. Watson) Rose, 1911 |
| Poincianella Britton & Rose, 1930 |
| Poincianella acapulcensis (Standl.) Britton & Rose, 1930 |
| Poincianella affinis (Hemsl.) Britton & Rose, 1930 |
| Poincianella arida Britton & Rose, 1930 |
| Poincianella caladenia (Standl.) Britton & Rose, 1930 |
| Poincianella californica (A. Gray) Britton & Rose, 1930 |
| Poincianella conzattii (Rose) Britton & Rose, 1930 |