| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Actaea rubra (Ait.) Willd. (Actée rouge) | 0 | 0 | 2 |
| Adenocaulon bicolor Hook. | 0 | 0 | 2 |
| Adenostoma fasciculatum Hook. & Arn. | 0 | 0 | 29 |
| Adenostoma sparsifolium Torr. | 0 | 0 | 5 |
| Adiantum | 0 | 0 | 2 |
| Adiantum aleuticum (Rupr.) C. A. Paris | 0 | 0 | 2 |
| Adiantum capillus-veneris L. (Capillaire cheveu-de-Vénus) | 0 | 0 | 6 |
| Adiantum pedatum | 0 | 0 | 8 |
| Adiantum tenerum Sw. | 0 | 0 | 2 |
| Adlumia fungosa (Ait.) Greene ex Britton, Stern & Poggenb. | 0 | 0 | 2 |
| Adoxa moschatellina L. (moscatelline) | 0 | 0 | 2 |
| Aesculus californica (Spach) Nutt. (Pavier de Californie) | 0 | 0 | 3 |
| Aesculus flava Soland. ex Hope | 0 | 0 | 18 |
| Aesculus glabra Willd. (Pavier de l'Ohio) | 0 | 0 | 4 |
| Aesculus parviflora Walt. | 0 | 0 | 2 |
