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Clematis viorna L.  

No occurrences found

Family: Ranunculaceae
vasevine
[Clematis beadlei (Small) Erickson, moreClematis coccinea Engelm. ex A.Gray, Clematis gattingeri Small, Clematis viorna var. flaccida (Small ex Rydb.) R.O.Erickson, Coriflora beadlei (Small) W.A. Weber, Coriflora gattingeri (Small) W.A. Weber, Coriflora viorna (L.) W.A. Weber, Viorna beadlei Small, Viorna flaccida (Small) Small, Viorna gattingeri (Small) Small, Viorna ridgwayi Standl., Viorna viorna (L.) Small]
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  • FNA
  • Gleason & Cronquist
  • Resources
James S. Pringle in Flora of North America (vol. 3)
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. 2 n = 16. Flowering spring-summer. Wooded cliffs and stream banks; 0-1400 m; Ala., Ark., Del., D.C., Ga., Ill., Ind., Ky., Md., Miss., Mo., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va. The Fox Indians prepared a drink from the roots of Clematis viorna to use medicinally as a panacea (D. E. Moerman 1986).

Vascular plants of NE US and adjacent Canada
Stem climbing, generally somewhat hairy at least at the nodes; principal lvs with 2-4 pairs of lfls, some of the lfls often trifoliolate; lfls lanceolate to ovate, entire or 2-3-lobed, thin, not prominently veined, generally hairy beneath and at the rachis-joints, not glaucous; cal urceolate; sep ovate or lance-ovate, 1.5-2.5 cm, caudate-acuminate, thinly hairy on the back, densely tomentose at the margins; style at anthesis hirsute, at maturity 3-5 cm, densely plumose throughout; 2n=16. Moist woods and thickets; Pa. to Ill. and Mo., s. to Ga. and Miss. (C. gattingeri; Viorna viorna; V. flaccida, a more hairy form)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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