Absinthium
Acadian Quillwort
Acinos
Actinidia
Adam And Eve
Addersmeat
Adderstongue
Adirondack Blackberry
Adlumia
Adorned Hawthorn
Aethusa
Agrimony
Agueweed
Ailanthus
Alder
Aleutian Maidenhair
Alfalfa
Alkali Buttercup
Alkaligrass
Allegheny Blackberry
Allegheny Hawkweed
Allegheny Monkeyflower
Allegheny Serviceberry
Allegheny Vine
Alliaria
Allseed
Alpine Arctic Cudweed
Alpine Azalea
Alpine Bearberry
Alpine Bistort
Alpine Bittercress
Alpine Bulrush
Alpine Fescue
Alpine Milkvetch
Alpine Pondweed
Alpine Rattlesnakeroot
Alpine Rockcress
Alpine Sweetgrass
Alpine Sweetvetch
Alpine Timothy
Alpine Violet
Alpine Woodsia
Alsike Clover
Alternateflower Watermilfoil