| Chionanthus virginicus |
Fringetree, Old man's beard |
Live plant |
| Chrysogonum virginianum |
Green and gold, Golden knees |
Live plant |
| Chrysopsis mariana |
Maryland golden-aster, Maryland golden aster |
Live plant |
| Chrysosplenium americanum |
Golden saxifrage, Water-mat, Water-carpet |
Live plant |
| Cinna arundinacea |
Common wood reedgrass, Sweet wood reed-grass |
Live plant |
| Circaea canadensis |
Enchanter's night-shade |
Live plant |
| Cirsium discolor |
Field thistle |
Live plant |
| Cirsium pumilum |
Pasture thistle |
Live plant |
| Claytonia virginica var. virginica |
Spring beauty, Virginia spring beauty, Eastern spring beauty |
Live plant |
| Claytosmunda claytoniana |
Interrupted fern |
Live plant |
| Clematis ochroleuca |
Curlyheads |
Live plant |
| Clematis virginiana |
Virgin's bower, Virgin's-bower |
Live plant |
| Clethra alnifolia |
Coastal white-alder, Sweet pepperbush |
Live plant |
| Clinopodium vulgare |
Wild basil |
Live plant |
| Clitoria mariana |
Maryland butterfly pea |
Live plant |
| Coleataenia anceps ssp. anceps |
Beaked panic grass |
Live plant |
| Coleataenia stipitata |
Redtop panic grass |
Live plant |
| Collinsonia canadensis |
Richweed, Canada horsebalm |
Live plant |
| Commelina erecta |
Slender dayflower, Erect dayflower |
Live plant |
| Commelina virginica |
Virginia dayflower |
Live plant |
| Comptonia peregrina |
Sweet-fern |
Live plant |
| Conoclinium coelestinum |
Mistflower, Ageratum, Blue boneset, Blue mistflower, Wild ageratum |
Live plant |
| Coreopsis auriculata |
Lobed coreopsis, Eared coreopsis , Mouse-eared coreopsis , Lobed tickseed , Ear-leaved tickseed |
Live plant |
| Coreopsis lanceolata |
Longstalk coreopsis, Lanceleaf coreopsis |
Live plant |
| Coreopsis major |
Woodland coreopsis, Greater tickseed, Greater coreopsis |
Live plant |