| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Acaciella | 0 | 2 | 0 |
| Acaciella | 0 | 2 | 0 |
| Acalypheae | 1 | 0 | 0 |
| Acalypheae | 0 | 0 | 0 |
| Acalyphoideae | 1 | 0 | 0 |
| Acalyphoideae | 1 | 0 | 0 |
| Acalyptratae | 1 | 0 | 0 |
| Acalyptratae | 1 | 0 | 0 |
| Acanthaceae (acanthus family) | 2 | 2 | 0 |
| Acanthaceae (acanthus family) | 2 | 2 | 0 |
| Acanthaster Gervais 1841 | 1 | 0 | 0 |
| Acanthaster Gervais 1841 | 1 | 0 | 0 |
| Acanthaster planci (Linnaeus 1758) (Crown of thorns starfish) | 0 | 2 | 0 |
| Acanthaster planci (Linnaeus 1758) (Crown of thorns starfish) | 0 | 2 | 0 |
| Acanthasteridae (crown of thorns starfish) | 1 | 0 | 0 |
