J. Wash. Acad. Sci. 21: 198. 1931.
Stems erect, not viny, 2-4 (-6) dm, pubescent or pilose to ± tomentose or hirsute. Leaves simple. Leaf-blade elliptic-lanceolate to ovate, unlobed, 3.5-8 (-10) × 1.5-5 (-6.5) cm, thin, not conspicuously reticulate; surfaces abaxially glabrous to sparsely (rarely more densely) villous on veins, not glaucous. Inflorescences terminal, flowers solitary; bracts absent. Flowers narrowly urn-shaped; sepals purplish, yellowish toward tips, oblong-lanceolate, (1.1-) 1.4-3 cm, margins not expanded or less than 1 mm wide, thin, not crispate, tomentose, tips obtuse, spreading to recurved, abaxially silky to woolly-pubescent. Achenes: bodies pilose; beak white to pale-yellow, (1.5-) 2-4 (-4.5) cm, plumose. 2n = 16.
Phenology: Flowering spring–early summer.
Habitat: Shale barrens
Elevation: 300-800 m
Clematis albicoma is known only from shale barrens predominantly developed from the Upper Devonian Brallier Formation in nine counties of western Virginia and adjacent West Virginia.
No values specified."thick" is not a number."dm" is not declared as a valid unit of measurement for this property.