Clematis hirsutissima |
Clematis viorna |
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Douglas' clematis, hairy clematis, leatherflower, sugar bowls, vaseflower |
leather-flower, vasevine |
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Stems | erect, not viny, 1.5-6.5 dm, hirsute (sometimes sparsely so in var. hirsutissima) or densely short, soft-pubescent to nearly glabrous. |
viny, to 4 m, without cobwebby pubescence, nearly glabrous, or moderately pilose-pubescent proximal to nodes. |
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Leaf | blade 2-3-pinnate; leaflets often deeply 2-several-lobed, if lobed than lateral lobes usually small and distinctly narrower than central portion, leaflets or lobes linear to lanceolate, 1-6 × 0.05-1.5 cm, thin, not prominently reticulate; surfaces sparsely to densely silky-hirsute, not glaucous. |
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. |
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Inflorescences | terminal, flowers solitary. |
axillary, 1-7-flowered; bracts well above base of peduncle/pedicel. |
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Flowers | broadly cylindric to urn-shaped; sepals very dark violet-blue or rarely pink or white, oblong-lanceolate, 2.5-4.5 cm, margins narrowly expanded distally, 0.5-2 mm wide, thin, distally ± crisped, tomentose, tips obtuse to acute, slightly spreading, abaxially usually densely hirsute, occasionally moderately so. |
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. |
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Achenes | bodies densely long-pubescent; beak 4-9 cm, plumose. |
bodies silky-pubescent; beak 2.5-6 cm, plumose. |
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2n | = 16. |
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Clematis hirsutissima |
Clematis viorna |
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Phenology | Flowering spring–summer. | |||||
Habitat | Wooded cliffs and stream banks | |||||
Elevation | 0-1400 m (0-4600 ft) | |||||
Distribution |
AZ; CO; ID; MT; NE; NM; OK; OR; SD; UT; WA; WY
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AL; AR; DC; DE; GA; IL; IN; KY; MD; MO; MS; NC; OH; PA; SC; TN; VA; WV
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Discussion | Varieties 2 (2 in the flora). The varieties of Clematis hirsutissima, although highly dissimilar in their extreme forms, intergrade extensively in Wyoming, Colorado, and Utah. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||
Parent taxa | Ranunculaceae > Clematis > subg. Viorna | Ranunculaceae > Clematis > subg. Viorna | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Coriflora hirsutissima | C. beadlei, C. viorna var. flaccida, Viorna beadlei, Viorna flaccida, Viorna gattingeri, Viorna viorna | ||||
Name authority | Pursh: Fl. Amer. Sept. 2: 385. (1814) | Linnaeus: Sp. Pl. 1: 543. (1753) | ||||
Web links |