| Latin Name | Common Name | Edibility Rating | Medicinal Rating |
| Abies grandis | Grand Fir, Giant Fir, Lowland White Fir | 2 | 2 |
| Abies lasiocarpa | Subalpine Fir, Alpine Fir | 2 | 2 |
| Abutilon theophrasti | China Jute, Velvetleaf, Butterprint Buttonweed Jute, China Mallow, Indian Velvet Leaf | 3 | 2 |
| Adonis aestivalis | Pheasant's Eye, Summer pheasant's eye | 0 | 1 |
| Agave americana | Agave, American century plant | 3 | 3 |
| Agave parryi | Century Plant, Parry's agave, Mescal | 3 | 1 |
| Agave utahensis discreta | Century Plant | 3 | 1 |
| Agave utahensis eborispina | Century Plant | 3 | 1 |
| Agoseris glauca | Mountain Dandelion, Pale agoseris, False agoseris | 1 | 1 |
| Akebia quinata | Akebia, Chocolate vine, Fiveleaf Akebia, Chocolate Vine | 4 | 2 |
| Alhagi mannifera | Manna Tree | 2 | 2 |
| Alhagi maurorum | Camel Thorn | 2 | 2 |
| Aloe vera | Aloe Vera, Barbados aloe, First Aid Plant, Medicinal Aloe | 1 | 5 |
| Althaea officinalis | Marsh Mallow, Common marshmallow | 5 | 5 |
| Amelanchier alnifolia | Saskatoon, Saskatoon serviceberry, Serviceberry | 5 | 2 |
| Anemarrhena asphodeloides | Zhi Mu | 0 | 3 |
| Angelica polymorpha | | 2 | 2 |
| Angelica sinensis | Dang Gui - Dong Quai - Chinese Angelica | 0 | 5 |
| Anthyllis vulneraria | Kidney Vetch | 1 | 2 |
| Artemisia tilesii | Wormwood, Tilesius' wormwood | 1 | 2 |
| Asarum caudatum | Wild Ginger, British Columbia wildginger | 3 | 2 |
| Asclepias incarnata | Swamp Milkweed, Swamp Butterfly Weed, Marsh Milkweed | 3 | 2 |
| Asclepias quadrifolia | Fourleaf Milkweed | 2 | 2 |
| Asimina triloba | Papaw | 4 | 2 |
| Asparagus officinalis | Asparagus, Garden asparagus | 4 | 3 |
| Asplenium adiantum-nigrum | Black Spleenwort | 0 | 2 |
| Asplenium trichomanes | Maidenhair Spleenwort, Dense spleenwort, Toothed spleenwort, Brightgreen spleenwort | 1 | 1 |
| Aster macrophyllus | Bigleaf Aster | 2 | 1 |
| Astragalus hamosus | European milkvetch | 1 | 2 |
| Atherosperma moschatum | Black Sassafras | 2 | 2 |
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