Absinthium
Acacia
Adam And Eve
Adderstongue
African Mustard
Agoseris
Agrimony
Agueweed
Ailanthus
Alabama Lipfern
Alder
Alderleaf Mountain Mahogany
Alfalfa
Alkali Buttercup
Alkali Cordgrass
Alkali Mallow
Alkali Sacaton
Alkali Swainsonpea
Alkali Yellowtops
Alkaligrass
Allegheny Blackberry
Allegheny Monkeyflower
Alliaria
Alpine Bladderpod
Alsike Clover
Alumroot
Alyssum
Amberique-bean
American Alumroot
American Basswood
American Bellflower
American Bittersweet
American Black Elderberry
American Black Nightshade
American Bladdernut
American Bluehearts
American Bugseed
American Bur-reed
American Burnweed
American Elm
American False Pennyroyal
American Ginseng
American Hazelnut
American Hogpeanut