Amelanchier laevis
Amelanchier spicata (syn. A. stolonifera)
Ammi majus
Ammophila breviligulata
Amorpha fructicosa
Anaphalis margaritacea
Andropogon gerardi
Anemonastrum canadense (syn. Anemone canadensis)
Anemone multifida
Anemone virginiana
Anethum graveolens
Angelica atropurpurea