| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Amphiesmenoptera | 1 | 0 | 0 |
| Amphiops | 0 | 2 | 0 |
| Amphipoda Latreille 1816 (amphipods) | 0 | 2 | 0 |
| Amygdaleae | 1 | 0 | 0 |
| Amygdaloideae | 2 | 0 | 0 |
| Amynodontidae | 0 | 1 | 0 |
| Amyridoideae | 1 | 0 | 0 |
| Anacamptis | 1 | 0 | 0 |
| Anacamptis morio (L.) R. M. Bateman, Pridgeon & M. W. Chase (Green-winged Orchid) | 0 | 2 | 0 |
| Anacardiaceae (cashew family) | 3 | 0 | 0 |
| Anacardioideae | 2 | 0 | 0 |
| Anacardium (anacardium) | 1 | 0 | 0 |
| Anacardium occidentale L. (cashew) | 0 | 2 | 0 |
| Anadenanthera (anadenanthera) | 1 | 0 | 0 |
| Anadenanthera colubrina (Vell.) Brenan (Curupaú) | 0 | 2 | 0 |
