Clematis lasiantha |
Clematis coactilis |
|
---|---|---|
chaparral clematis, pipestem, pipestem clematis |
Virginia whitehair leather flower |
|
Stems | scrambling to climbing, 3-4 m. Leaf blade 3-foliolate; leaflets ovate, largest leaflets usually 3-lobed, 1.5-6 × 1.5-5 cm; terminal leaflet occasionally 3-cleft, margins usually toothed; surfaces glabrous or sparsely silky. |
erect, not viny, 2-4.5 dm, densely silky, hirsute, or ± tomentose with appressed hairs. |
Leaves | blade rarely 1-pinnate, narrowly to broadly ovate, unlobed or sometimes few-lobed, 5-12 × 3-9.5 cm, leathery, ± prominently reticulate adaxially; surfaces abaxially densely silky-tomentose with appressed hairs, not glaucous. |
|
Inflorescences | axillary, flowers solitary, rarely 3-flowered cymes. |
terminal, flowers solitary; bracts absent. |
Flowers | unisexual; pedicel (including peduncle) stout, 3.5-11 cm; sepals wide-spreading, not recurved, white to cream, ovate or elliptic to obovate or oblanceolate, 10-21 mm, abaxially and adaxially pilose; stamens 50-100; filaments glabrous; staminodes absent or 50-100; pistils 75-100. |
broadly urn-shaped; sepals pale yellow to rarely purple-tinged, lanceolate, 1.9-3.4 cm, margins not expanded or narrowly expanded to 1.7 mm wide, thin, not crispate, tomentose, tips obtuse, spreading, abaxially finely tomentose. |
Achenes | asymmetric-ovate, not broadly orbiculate, 3-4 × 1.5-2 mm, not conspicuously rimmed, glabrous; beak 3.5-5.5 cm. |
body pilose, hairs of rim spreading; beak (2.5-)3-4.5(-5.5) cm, plumose. |
2n | = 16. |
= 16. |
Clematis lasiantha |
Clematis coactilis |
|
Phenology | Flowering winter–spring (Jan–Jun). | Flowering spring–early summer. |
Habitat | Chaparral, open woodlands | Shale barrens, rarely on sandstone, dolomite, or limestone outcrops |
Elevation | 0-2000 m (0-6600 ft) | 300-600 m (1000-2000 ft) |
Distribution |
CA; Mexico (Baja California)
|
VA |
Discussion | Clematis lasiantha is common in the Coast Ranges and the foothills of the Sierra Nevada of California. The Shasta used pounded stems or chewed or burned roots of Clematis lasiantha medicinally in the treatment of colds (D. E. Moerman 1986). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Clematis coactilis is known only from western Virginia. C. S. Keener (1967, 1975) suggested that this species may be a stabilized derivative of past hybridization between C. albicoma and C. ochroleuca. In fruit, Clematis coactilis is distinguishable from C. ochroleuca by its combination of spreading to reflexed hairs on the achene rims and whitish to pale yellow (rarely tawny) hairs on the beaks, contrasting with the strongly ascending hairs on the achene rims and tawny (rarely yellowish white) hairs on the beaks of C. ochroleuca. This species and C. ochroleuca lack stomates on the adaxial surface of the leaves, whereas the closely related species C. albicoma, C. fremontii, and C. viticaulis have stomates on both leaf surfaces (C. S. Keener 1967). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Clematis > subg. Clematis | Ranunculaceae > Clematis > subg. Viorna |
Sibling taxa | ||
Synonyms | C. albicoma var. coactilis | |
Name authority | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 9. (1838) | (Fernald) Keener: J. Elisha Mitchell Sci. Soc. 83: 36. (1967) |
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