Clematis occidentalis |
Clematis morefieldii |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
blue clematis, clématite occidentale, Columbia bower, Columbia clematis, Columbia virgin's bower, purple clematis, purple virgin's-bower, rock clematis, western blue clematis, western blue virginsbower, western clematis |
huntsville vasevine, Morefield's clematis, Morefield's leather-flower |
|||||||||
Stems | viny, climbing or trailing (plants scarcely viny perennials in var. dissecta). |
viny, to 5 m, cobwebby-tomentose and pilose. |
||||||||
Leaf | blade 1-ternate (or terminal leaflet sometimes ternate in var. dissecta), ± firm but not succulent; leaflets lance-ovate to triangular or suborbiculate, lobed or unlobed, margins entire or toothed. |
blade 1-pinnate; leaflets 4-10 plus additional tendril-like terminal leaflet, narrowly to broadly ovate, unlobed or 2-3-lobed, 3.5-10 × 2-6.5 cm, thin, reticulate; surfaces abaxially densely silky-pilose, not glaucous. |
||||||||
Inflorescences | axillary, 1-5-flowered; bracts at or near base of peduncle/pedicel. |
|||||||||
Flowers | sepals violet-blue, reddish violet, or white, lanceolate to ovate or elliptic-oblong. |
urn-shaped; sepals pinkish, suffused with green, oblong-lanceolate, 2-2.5 cm, margins not expanded, thick, not crispate, tomentose, tips acuminate, slightly spreading to short-reflexed, abaxially densely silky-pubescent. |
||||||||
Achenes | bodies silky-pubescent; beak 3-3.5 cm, plumose. |
|||||||||
Clematis occidentalis |
Clematis morefieldii |
|||||||||
Phenology | Flowering spring–early summer. | |||||||||
Habitat | Open woods among limestone boulders | |||||||||
Elevation | 200-300 m (700-1000 ft) | |||||||||
Distribution |
CO; CT; DE; IA; ID; IL; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OR; PA; RI; UT; VA; VT; WA; WI; WV; WY; AB; BC; NB; ON; QC; SK; YT
|
AL |
||||||||
Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Clematis morefieldii is known only from limestone uplands east of Huntsville, Madison County, Alabama. From all variants of the closely related Clematis viorna, C. morefieldii differs in the cobwebby tomentose as well as villous pubescence of its stems, and in having bracts at or very near the base of the peduncle rather than well above the base. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
Key |
|
|||||||||
Source | FNA vol. 3. | FNA vol. 3. | ||||||||
Parent taxa | Ranunculaceae > Clematis > subg. Atragene | Ranunculaceae > Clematis > subg. Viorna | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Atragene occidentalis | |||||||||
Name authority | (Hornemann) de Candolle: Prodr. 1: 10. (1824) | Kral: Ann. Missouri Bot. Gard. 74: 665. (1987) | ||||||||
Web links |
|