Absinthium          

Adam And Eve          

Adderstongue          

Adlumia          

Adoxa          

African Dogstooth Grass          

Agoseris          

Agrimony          

Agueweed          

Ailanthus          

Alder          

Alfalfa          

Alkali Buttercup      

Alkaligrass          

Allegheny Blackberry      

Allegheny Monkeyflower          

Allegheny Serviceberry      

Allegheny Vine          

Alliaria          

Alsike Clover      

Alternate-leaf Golden Saxifrage          

Alternateleaf Dogwood      

Alumroot          

Amberboa          

Amberique-bean          

American Alumroot          

American Basswood      

American Bellflower      

American Bittersweet      

American Black Currant      

American Black Elderberry      

American Bladdernut          

American Bugseed          

American Bur-reed      

American Burnweed          

American Cancer-root          

American Chestnut      

American Cranberrybush      

American Dragonhead          

American Eelgrass      

American Elm      

American False Pennyroyal          

American Fly Honeysuckle          

American Ginseng