Vascular Plants - Ranunculaceae - Clematis:
Clematis ligusticifolia
Page Author: David Giblin
western white clematis, western clematis 
Blooms: June-September
Habit: shrub,vine,herb
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Chiefly east of the Cascades crest in Washington; British Columbia south to California, east to Oklahoma and the Dakotas.
Habitat: River valleys and sagebrush desert to ponderosa pine forests.
Species 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.
Synonyms:
Clematis ligusticifolia Nutt. var. brevifolia Nutt.
Clematis ligusticifolia Nutt. var. ligusticifolia
Clematis neomexicana Wooton & Standley
Clematis suksdorfii B.L. Robinson

Treated in Flora of the PNW as:
Clematis ligusticifolia
Additional Resources:

PNW Herbaria Specimens: View list of all Clematis ligusticifolia specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Clematis ligusticifolia specimens in the WTU Herbarium database.

Washington Flora Checklist: Clematis ligusticifolia treatment.

E-Flora BC: Clematis ligusticifolia atlas page.

CalPhotos: Clematis ligusticifolia images.

USDA Plants Database: Clematis ligusticifolia.
Additional photographs of Clematis ligusticifolia:
(click on a thumbnail to view larger photo)

Clayton J. Antieau, 1995

Clayton J. Antieau, 1995

Richard Old

Richard Old

Richard Old

Richard Old

Dana Visalli

Don Knoke, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

H. Tim Gladwin, 1988

H. Tim Gladwin, 1988

Ben Legler, 2006

Ben Legler, 2006

Ben Legler, 2006

Ben Legler, 2006

Jim Riley

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

David Giblin, 2009

David Giblin, 2009

David Giblin, 2009

Chris Wood, 2009

Robert L. Carr, 2009

Walter Siegmund, 2011

Walter Siegmund, 2011

Don Jacobson, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ron Bockelman, 2013

Ernie Buchanan, 2004

Ernie Buchanan, 2004

Brian Luther, 2012

Brian Luther, 2012

Brian Luther, 2012

Brian Luther, 2012

Ron Bockelman, 2014

Brian Luther, 2015

Rod Gilbert, 2011

Rod Gilbert, 2011

Rod Gilbert, 2011
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Washington Native Plant Society
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