Absinthium
Adderstongue
Adonis Blazingstar
African Dogstooth Grass
Agoseris
Agrimony
Ailanthus
Alderleaf Mountain Mahogany
Alfalfa
Alfalfa Dodder
Alkali Buttercup
Alkali Cordgrass
Alkali Sacaton
Alkaligrass
Allegheny Blackberry
Allegheny Monkeyflower
Alliaria
Alpine Bladderpod
Alpine Golden Buckwheat
Alpine Leafybract Aster
Alpine Sweetvetch
Alsike Clover
Alumroot
Alyssum
Alyssumleaf Phlox
Amberique-bean
American Alumroot
American Basswood
American Bellflower
American Bittersweet
American Black Currant
American Black Elderberry
American Bladdernut
American Bugseed
American Burnweed
American Cranberrybush
American Dragonhead
American Elm
American False Pennyroyal
American Ginseng
American Hazelnut
American Hogpeanut
American Licorice
American Lopseed