| Albizia sinaloensis Britton & Rose, 1928 |
| Albizia tomentosa (Micheli) Standl., 1923 |
| Albizia tomentosa var. tomentosa (Micheli) Standl., 1923 |
| Albizia xerophytica J. Linares, 2005 |
| Alepidocalyx Piper, 1926 |
| Alepidocalyx amblyosepalus Piper, 1926 |
| Alepidocalyx anisophyllus Piper, 1926 |
| Alepidocalyx parvulus (Greene) Piper, 1926 |
| Alhagi Gagnebin, 1755 |
| Alhagi camelorum Fisch., 1812 |
| Alhagi maurorum Medik., 1787 |
| Alhagi maurorum var. turcorum (Boiss.) Meikle, 1977 |
| Alysicarpus Desv., 1813 |
| Alysicarpus ovalifolius (Schumach.) J. Léonard, 1954 |
| Alysicarpus vaginalis (L.) DC., 1825 |
| Amerimnon P. Browne, 1756 |
| Amerimnon brownei Jacq., 1760 |
| Amerimnon calycinum (Benth.) Kuntze, 1891 |
| Amerimnon campechianum (Benth.) Kuntze, 1891 |
| Amerimnon congestiflorum (Pittier) Standl., 1926 |