Clematis hirsutissima |
Clematis texensis |
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Douglas' clematis, hairy clematis, leatherflower, sugar bowls, vaseflower |
crimson clematis, scarlet clematis, scarlet leather flower, Texas clematis |
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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 3 m, glabrous or sometimes ± hirsute near 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 1-pinnate; leaflets 6-10 plus additional tendril-like terminal leaflet, ovate to nearly round, unlobed, 2-3-lobed, or most proximal occasionally 3-foliolate, 1-9 × 1-6 cm, leathery, ± prominently reticulate adaxially; surfaces abaxially usually glabrous, occasionally sparsely pubescent, glaucous. |
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Inflorescences | terminal, flowers solitary. |
axillary, 1-7-flowered. |
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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. |
ovoid to urn-shaped; sepals rose-red to scarlet abaxially and at tip adaxially, ovate-lanceolate, 1.5-3 cm, margins not expanded, thick, not crispate, tomentose, tips acute to acuminate, recurved, abaxially glabrous. |
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Achenes | bodies densely long-pubescent; beak 4-9 cm, plumose. |
bodies appressed-pubescent; beak 4-7 cm, plumose. |
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2n | = 16. |
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Clematis hirsutissima |
Clematis texensis |
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Phenology | Flowering spring–summer (Mar–Jun). | |||||
Habitat | Woodlands, calcareous cliffs, and stream banks | |||||
Elevation | 80-700 m (300-2300 ft) | |||||
Distribution |
AZ; CO; ID; MT; NE; NM; OK; OR; SD; UT; WA; WY
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TX
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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.) |
Although widely cultivated because it is the only species of Clematis with truly red flowers, C.texensis is native only to the southeastern part of the Edwards Plateau, Texas. (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 | Viorna coccinea | ||||
Name authority | Pursh: Fl. Amer. Sept. 2: 385. (1814) | Buckley: Proc. Acad. Nat. Sci. Philadelphia 13: 448. (1862) | ||||
Web links |