| Amerimnon mexicanum (Pittier) Standl., 1926 |
| Amerimnon retusum (Hemsl.) Standl., 1923 |
| Amerimnon tabascanum (Pittier) Standl., 1926 |
| Amicia Kunth, 1824 |
| Amicia zygomeris DC., 1825 |
| Amoria C. Presl, 1831 |
| Amoria caroliniana (Michx.) C. Presl, 1830 |
| Amoria reflexa (L.) C. Presl, 1830 |
| Amoria repens (L.) C. Presl, 1830 |
| Amorpha L., 1753 |
| Amorpha apiculata Wiggins, 1933 |
| Amorpha californica Nutt., 1838 |
| Amorpha fruticosa L., 1753 |
| Amorpha fruticosa var. occidentalis (Abrams) Kearney & Peebles, 1939 |
| Amorpha roemeriana Scheele, 1848 |
| Amorpheae Boriss., 1964 |
| Amphicarpaea Elliott ex Nutt., 1818 |
| Amphicarpaea bracteata (L.) Fernald, 1933 |
| Amphicarpaea pulchella (Kunth) Taub., 1894 |
| Ancistrotropis A. Delgado, 2011 |