| Latin Name | Common Name | Edibility Rating | Medicinal Rating |
| Abies lasiocarpa | Subalpine Fir, Alpine Fir | 2 | 2 |
| Abronia fragrans | Snowball Sand Verbena | 2 | 1 |
| Acer negundo | Box Elder | 3 | 1 |
| Acer pensylvanicum | Moosewood, Striped maple, Moosewood, Pennsylvania Maple | 0 | 1 |
| Achlys triphylla | Vanilla leaf, Sweet after death | 0 | 1 |
| Actaea rubra | Red Baneberry | 0 | 2 |
| Adiantum venustum | Evergreen Maidenhair Fern | 0 | 1 |
| Aesculus chinensis | Chinese Horse Chestnut | 3 | 1 |
| Ailanthus altissima | Tree Of Heaven | 1 | 3 |
| Aleurites fordii | Tung Tree, Tung Oil Tree, Wood Oil Tree China | 1 | 3 |
| Allium tricoccum | Wood Leek, Ramp | 4 | 2 |
| Alnus glutinosa | Alder, European alder , Common Alder, Black Alder | 0 | 3 |
| Alnus rhombifolia | White Alder | 1 | 2 |
| Alnus rugosa | Speckled Alder | 0 | 2 |
| Alnus serrulata | Smooth Alder, Hazel alder | 0 | 2 |
| Alnus sinuata | Sitka Alder | 1 | 1 |
| Alnus tenuifolia | Mountain Alder, Thinleaf alder | 1 | 2 |
| Alnus viridis crispa | American Green Alder | 1 | 2 |
| Ambrosia artemesiifolia | Roman Wormwood, Bitterweed, Blackweed, Carrot Weed, Hay Fever Weed, Stickeweed, Tassel Weed, Wild Ta | 2 | 3 |
| Ambrosia trifida | Giant Ragweed, Great ragweed, Texan great ragweed, Bitterweed, Bloodweed, Buffalo Weed, Horse Cane | 1 | 3 |
| Anemone obtusiloba | | 0 | 1 |
| Anemone virginiana | Tall Thimbleweed | 0 | 1 |
| Anthemis cotula | Mayweed, Stinking chamomile | 1 | 2 |
| Apocynum androsaemifolium | Spreading Dogbane | 0 | 2 |
| Apocynum cannabinum | Indian Hemp | 2 | 2 |
| Argemone albiflora | White Prickly Poppy, Bluestem pricklypoppy | 0 | 1 |
| Argemone mexicana | Prickly Poppy, Mexican pricklypoppy | 1 | 3 |
| Asarum europaeum | Asarabacca, European Wild Ginger | 0 | 2 |
| Asarum sieboldii | Wild Ginger | 0 | 2 |
| Asclepias incarnata | Swamp Milkweed, Swamp Butterfly Weed, Marsh Milkweed | 3 | 2 |
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