Clematis hirsutissima |
Clematis viticaulis |
|||||
---|---|---|---|---|---|---|
Douglas' clematis, hairy clematis, leatherflower, sugar bowls, vaseflower |
grape clematis, grape leather-flower, Millboro leather-flower |
|||||
Stems | erect, not viny, 1.5-6.5 dm, hirsute (sometimes sparsely so in var. hirsutissima) or densely short, soft-pubescent to nearly glabrous. |
erect, 2-5 dm, finely and densely hirtellous. |
||||
Leaves | 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 elliptic-lanceolate to narrowly ovate, unlobed, (2-)4-8 × 1.5-3.5(-4.5) cm, thin, not conspicuously reticulate; surfaces abaxially sparsely (rarely more densely) villous on veins, not glaucous. |
||||
Inflorescences | terminal, flowers solitary. |
terminal, flowers solitary; bracts absent. |
||||
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. |
urn-shaped; sepals pale purple, often suffused with green abaxially, lanceolate, 1.4-2.5 cm, margins not expanded, thin, not crispate, puberulent, tips obtuse to acute, spreading to recurved, abaxially nearly glabrous to minutely puberulent. |
||||
Achenes | bodies densely long-pubescent; beak 4-9 cm, plumose. |
bodies short-pilose; beak coppery brown, 2-3.5(-4) cm, plumose. |
||||
2n | = 16. |
|||||
Clematis hirsutissima |
Clematis viticaulis |
|||||
Phenology | Flowering spring–early summer. | |||||
Habitat | Shale barrens | |||||
Elevation | 400-500 m (1300-1600 ft) | |||||
Distribution |
AZ; CO; ID; MT; NE; NM; OK; OR; SD; UT; WA; WY
|
VA |
||||
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.) |
Of conservation concern. Clematis viticaulis is known only from shale barrens developed from the Upper Devonian Brallier Formation in Bath and Rockbridge counties of western Virginia. The coppery brown hairs on the mature beaks are useful for distinguishing this species (C. S. Keener 1967). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 3. | FNA vol. 3. | ||||
Parent taxa | Ranunculaceae > Clematis > subg. Viorna | Ranunculaceae > Clematis > subg. Viorna | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Coriflora hirsutissima | |||||
Name authority | Pursh: Fl. Amer. Sept. 2: 385. (1814) | Steele: Contr. U.S. Natl. Herb. 13: 364. (1911) | ||||
Web links |