Page authors: Don Knoke, David Giblin
Clematis ligusticifolia
western clematis
Specimens
Photos

Distribution: Occurring chiefly east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to the Rocky Mountains and Great Plains.

Habitat: River valleys and sagebrush desert to ponderosa pine forests.

Flowers: June-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Description:
General:

Strong, woody, dioecious climbing vine to 20 m. long.

Leaves:

Leaves pinnately compound with 5-7 narrowly to broadly ovate-cordate leaflets 3-6 cm. long, coarsely few-toothed or lobed.

Flowers:

Flowers in several-flowered bracteate panicles; sepals 4, creamy white, narrowly oblong-lanceolate, 6-15 mm. long; petals none; staminate flowers without vestigial pistils; pistillate flowers with numerous, sterile stamens.

Fruits:

Achenes hairy; styles persistent, 2.5-5 cm. long.

Accepted Name:
Clematis ligusticifolia Nutt.
Publication: Fl. N. Amer. 1: 9. 1838.

Synonyms & Misapplications:
Clematis ligusticifolia Nutt. var. brevifolia Nutt. [KZ99]
Clematis ligusticifolia Nutt. var. ligusticifolia [KZ99]
Clematis neomexicana Wooton & Standl.
Clematis suksdorfii B.L. Rob.
Additional Resources:

PNW Herbaria: Specimen records of Clematis ligusticifolia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Clematis ligusticifolia checklist entry.

E-Flora BC: Clematis ligusticifolia atlas page.

CalPhotos: Clematis ligusticifolia photos.

USDA Plants: Clematis ligusticifolia information.

77 photographs:
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