Clematis albicoma Wherry:
United States (North America)

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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.

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. 2 n = 16.

Isotype for Clematis albicoma Wherry
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): G. Guttenberg
Year Collected: 1877
Locality: West Virginia, United States, North America

Flowering spring-early summer. Shale barrens; 300-800 m; Va., W.Va.

United States

Rounded National Status Rank: NNR - Unranked

Rounded Global Status Rank: G4 - Apparently Secure