| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Aciculata | 1 | 0 | 0 |
| Acinonyx Brookes 1828 | 1 | 0 | 0 |
| Acinonyx jubatus (Schreber 1775) (cheetah) | 0 | 2 | 0 |
| Acipenser | 1 | 0 | 0 |
| Acipenser stellatus Pallas 1771 (Star Sturgeon) | 0 | 2 | 0 |
| Acipenseridae (sturgeons) | 1 | 0 | 0 |
| Acipenseriformes (sturgeons and paddlefishes) | 1 | 0 | 0 |
| Acmella (spotflower) | 1 | 0 | 0 |
| Acmella oleracea (L.) R. K. Jansen (spilanthes) | 0 | 2 | 0 |
| Aconoidasida | 1 | 0 | 0 |
| Acoraceae (sweet flag family) | 1 | 0 | 0 |
| Acorales | 1 | 0 | 0 |
| Acorus (Sweet-flag) | 1 | 0 | 0 |
| Acorus calamus L. (Sweet Flag) | 0 | 2 | 0 |
| Acraea | 1 | 0 | 0 |
