See ferns and allies
See trees, shrubs and woody vines
Wildflowers
| Acalypha virginica | Three Seeded Mercury | |
| Achillea millefolium | Yarrow | Used as an 'all-heal' medicinal herb, this plant is circumpolar and was familiar to early settlers. Colonizes roadside and field edges. |
Aconitum uncinatum
 | Monkshood | Quite uncommon on the Eno and elsewhere in the central piedmont. The basal rosettes show up in late winter but this shade-loving plant has flower stems that don't elongate and bloom until very late in the summer, barely before frost. |
| Actaea pachypoda | Dolls Eye, Baneberry | Agalinis decemloba |
| Agalinis decemloba | Tenlobe Gerardia | |
A. purpurea
 | Purple Gerardia | A shrubby annual of the Figwort family that blooms in late summer and early fall. Found in open habitat such as powerlines and unmowed roadsides. |
| A. tenuifolia | Slenderleaf Gerardia | |
| Agrimonia parviflora | Harvestlice | |
| A. pubescens | Soft Agrimony | |
| Agrostemma githago | Corn-cockle | |
| Aletris farinosa | Stargrass, Colic-root | |
| Alisma subcordatum | Water Plantain | |
| Allium canadense | Meadow Garlic | |
| A. vineale | Wild Garlic | |
| Amaranthus species | Pigweed | |
| Ambrosia artemisiifolia | Annual Ragweed | |
| A. trifida | Giant Ragweed | |
Amianthium muscaetoxicum
 | Fly-poison | A lily found in dry open woods. At one time, the bulbs were actually crushed and mixed with honey or syrup for fly poison. |
| Amphicarpa bracteata | Hog Peanut | |
Amsonia tabernaemontana
 | Blue Star | An early blooming plant of woods edges. Closely related to Indian Hemp, both being from the Dogbane family. |
| Anagallis arvensis | Scarlet Pimpernel | |
| Aneilema keisak | Wartremoving Herb | |
| Anemone lancifolia | Mountain Thimbleweed | Locally rare, being more common in the mountains. |
A. virginiana
 | Thimbleweed | The common name is derived from the appearance of the seed head. There is one very rare look-alike in NC. |
| Angelica venenosa | Hairy Angelica | |
| Antennaria plantaginifolia | Pussy-toes, Woman's Tobacco | |
| A. solitaria | Pussy-toes | |
| Anthemis cotula | Dog Fennel, | |
| Apios americana | Groundnut | |
| Aplectrum hyemale | Puttyroot, Adam-and-Eve | |
| Apocynum cannabinum | Indian Hemp | |
Aquilegia canadensis
 | Columbine | Along the Eno this plant can be found growing in the wild at Cox's Mountain. Frequently a cultivated garden plant. |
| Arabis Canadensis | Sicklepod | |
| A. laevigata | Smooth Rockcress | Lesser Burdock |
| Arisaema dracontium | Green Dragon | |
A. triphyllum
 | Jack-in-the-pulpit | Denizens of low, swampy woods and edges, flowering in early spring.The bright red berries are very spectacular in the fall. |
| Aristolochia serpentaria | Birthwort | |
Arnica acaulis
 | Leopard's-bane | Early blooming (April) member of the Composite family. Common name means killer of leopards! Actually all parts of the plant are deemed poisonous to mammals. |
| Artemisia vulgaris | Common Wormwood | |
| Aruncus dioicus | Goat's Beard | |
| Asarum canadense | Deciduous Ginger | |
| Asclepias amplexicaulis | Clasping Milkweed | |
| A. incarnata | Swamp Milkweed | |
| A. syriaca | Common Milkweed | |
A. tuberosa
 | Butterfly-weed | |
A. variegata
 | White Milkweed | Growing in open areas, this tall summer milkweed attracts numerous butterflies. The floss from the seedpods was collected for life jackets during World War II! |
| A. verticillata | Horsetail or Whorled Milkweed | |
| A. viridiflora | Green Milkweed | |
| Aster concolor | Eastern Silver Aster | |
| A. divaricatus | Wood Aster | |
