Burke: Clematis terniflora vs. Clematis hirsutissima

	Clematis terniflora	Clematis hirsutissima
		Douglas's clematis, leatherflower, sugarbowls, vaseflower
Habit		Stems erect, woody, climbing vines to 15-65 cm long, mostly hirsute; Occasionally densely short, nearly glabrous.
Leaves		Blade 2 or 3 times pinnate; leaflets often 2- several-lobed; If lobed, lateral lobes distinctly smaller and narrower than central position, leaflets/lobes linear to lanceolate, thin; leaf surfaces sparsely to densely silky-hirsute.
Flowers		Broadly cylindric-urn shaped; sepals blue-deep violet or rarely pink/white, oblong-lanceolate, 2-5cm in length, margins narrowly expanded distally, crisped, tomentose, tips oblong to acute, abaxially usually densely hirsute; terminal inflorescences, flowers solitary.
Fruit		Achenes: Densely long-pubescent, 4-9 cm, and plumose.

	Clematis terniflora	Clematis hirsutissima
Flowering time		May-June
Habitat		Meadows, grasslands, and forest openings.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in eastern Washington; Washington to Oregon, east to Montana, south to Arizona and New Mexico. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Not of concern
Sibling taxa	C. hirsutissima, C. ligusticifolia, C. occidentalis, C. orientalis, C. vitalba	C. ligusticifolia, C. occidentalis, C. orientalis, C. vitalba
Subordinate taxa		C. hirsutissima var. hirsutissima
Web links	Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: OR, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Clematis terniflora

Clematis hirsutissima

Douglas's clematis, leatherflower, sugarbowls, vaseflower

Habit

Stems erect, woody, climbing vines to 15-65 cm long, mostly hirsute; Occasionally densely short, nearly glabrous.

Leaves

Blade 2 or 3 times pinnate;

leaflets often 2- several-lobed; If lobed, lateral lobes distinctly smaller and narrower than central position, leaflets/lobes linear to lanceolate, thin; leaf surfaces sparsely to densely silky-hirsute.

Flowers

Broadly cylindric-urn shaped;

sepals blue-deep violet or rarely pink/white, oblong-lanceolate, 2-5cm in length, margins narrowly expanded distally, crisped, tomentose, tips oblong to acute, abaxially usually densely hirsute; terminal inflorescences, flowers solitary.

Fruit

Achenes: Densely long-pubescent, 4-9 cm, and plumose.