| Ageratina altissima var. altissima White snakeroot View 8 images |  |
| Agarista populifolia Florida hobblebush View 1 images |  |
| Amelanchier arborea Common serviceberry View 4 images |  |
| Amorpha fruticosa Indigo bush View 18 images |  |
| Amelanchier stolonifera Running serviceberry View 3 images |  |
| Amsonia tabernaemontana Eastern bluestar View 3 images |  |
| Anemone virginiana Tall thimbleweed View 8 images |  |
| Aquilegia canadensis Eastern red columbine View 55 images |  |
| Aralia spinosa Devil's walkingstick View 12 images |  |
| Arisaema triphyllum Jack in the pulpit View 34 images |  |
