| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Margyracaena skottsbergii | 0 | 0 | 1 |
| Aa | 0 | 0 | 1 |
| Aabaarnia | 1 | 0 | 0 |
| Aabaarnia siphulicola Diederich | 0 | 0 | 1 |
| Aartsenia Warén 1991 | 1 | 0 | 0 |
| Abaraeus | 1 | 0 | 0 |
| Abaraeus hamifer Aurivillius 1907 | 0 | 0 | 1 |
| Abarema | 1 | 0 | 0 |
| Abarema microcalyx | 0 | 0 | 1 |
| Aberdaria | 1 | 0 | 0 |
| Aberdaria ligulata Holm 1962 | 0 | 0 | 3 |
| Aberdereca | 0 | 0 | 1 |
| Aberrantidrilus | 1 | 0 | 0 |
| Abia Leach 1817 | 0 | 0 | 5 |
| Abies (Fir) | 2 | 0 | 0 |
