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Clematis crispa L.  

No occurrences found

Family: Ranunculaceae
swamp leather flower
[Clematis crispa var. walteri (Pursh) A.Gray, moreCoriflora crispa (L.) W.A. Weber, Viorna crispa (L.) Small, Viorna crispa var. walteri (Pursh) Small, Viorna obliqua Small]
Clematis crispa image
Paul Rothrock
  • FNA
  • Gleason & Cronquist
  • Resources
James S. Pringle in Flora of North America (vol. 3)
Stems viny, to 3 m, glabrous or sparsely to moderately pilose-pubescent, denser at nodes. Leaf blade 1-2-pinnate or rarely a few simple or 3-foliolate; leaflets 4-10 plus additional ± tendril-like terminal leaflet, usually lanceolate to ovate, occasionally linear, unlobed or proximally 3-5-lobed, (1.5-)3-10 × (0.1-)0.4-4(-5) cm, thin, not conspicuously reticulate; surfaces glabrous, not glaucous. Inflorescences terminal, 1-flowered; bracts absent. Flowers bell-shaped; sepals distally strongly spreading to recurved, violet-blue, lanceolate, 2.5-5 cm, margins proximally thick and tomentose, distally broadly expanded, 2-6 mm wide, thin, crispate, less conspicuously tomentose than proximal portion, or glabrate, tips acuminate, abaxially glabrous. Achenes: bodies appressed-puberulent; beak 2-3.5 cm, appressed-puberulent. 2 n = 16. Flowering spring-summer. Low woods, bottomlands, swamps; 0-200 m; Ala., Ark., Fla., Ga., Ill., Ky., La., Miss., Mo., N.C., Okla., S.C., Tenn., Tex., Va. Clematis crispa is highly variable in leaflet width, and conspicuous variation may occur on a single plant (R.O. Erickson 1943); no discontinuity or geographic correlation exists that would permit the recognition of varieties. The dilated, petaloid sepal tips and thin, crispate, broadly expanded sepal margins are diagnostic for this species.

Vascular plants of NE US and adjacent Canada
Climber; lvs pinnate; lfls mostly 2-4 pairs, lanceolate to ovate, acuminate, entire or rarely 2-3-lobed, glabrous, the lower lfls on each lf much the larger; cal urceolate; sep 3-4.5 cm, connivent about half-length, the body narrowly lanceolate, dilated above the middle into broad, thin, undulate or crisped margins; mature style 2-3 cm, with numerous ascending hairs rarely over 1.5 mm; 2n=16. Swamps and wet woods on the coastal plain and piedmont; se. Va. to Fla. and Tex., n. in the interior to s. Ill. May-Aug.

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.
Clematis crispa
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Clematis crispa image
Paul Rothrock
Clematis crispa image
Paul Rothrock
Clematis crispa image
Clematis crispa image
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