Clematis viorna


Sp. Pl. 1: 543. 1753

Common names: Leather-flower
EndemicSelected by author to be illustrated
Synonyms: Clematis beadlei (Small) R. O. EricksonClematis viorna var. flaccida (Small ex Rydberg) R. O. EricksonViorna beadlei (Small ex Rydberg) SmallViorna flaccida SmallViorna gattingeri (Linnaeus) SmallViorna viorna unknown
Treatment appears in FNA Volume 3.
Click plate for higher resolution version.
Stems viny, to 4 m, without cobwebby pubescence, nearly glabrous, or moderately pilose-pubescent proximal to nodes. Leaf blade mostly 1-pinnate, some simple; leaflets usually 4-8 plus additional tendril-like terminal leaflet, lanceolate to ovate, unlobed or 2-3-lobed, or most proximal 3-foliolate, 2-12 × 1-5(-6) cm, thin, not conspicuously reticulate; surfaces abaxially sparsely to densely pilose, not glaucous. Inflorescences axillary, 1-7-flowered; bracts well above base of peduncle/pedicel. Flowers broadly urn-shaped to bell-shaped; sepals pale lavender to reddish purple, grading to cream-yellow toward tip, ovate-lanceolate, 1.5-3 cm, margins not expanded, very thick, not crispate, tomentose, tips acuminate, recurved, abaxially sparsely to densely pubescent. Achenes: bodies silky-pubescent; beak 2.5-6 cm, plumose. 2n = 16.

Phenology: Flowering spring–summer.
Habitat: Wooded cliffs and stream banks
Elevation: 0-1400 m


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Ala., Ark., Del., D.C., Ga., Ill., Ind., Ky., Md., Miss., Mo., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.


Formerly Clematis viorna was locally naturalized near Guelph, Ontario; no recent reports are known. D.S. Correll and M.C. Johnston (1970) mention "a report of a specimen" from Texas; neither the specimen nor further details have been located.

The Fox Indians prepared a drink from the roots of Clematis viorna to use medicinally as a panacea (D. E. Moerman 1986).



Lower Taxa

No lower taxa listed.