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Clematis occidentalis var. grosseserrata (Western blue virginsbower)
Beckers, Eric

Clematis occidentalis var. grosseserrata

Clematis occidentalis (Hornem.) DC. var. grosseserrata (Rydb.) J. Pringle

Western Blue Virginsbower

Ranunculaceae (Buttercup Family)

Synonym(s): Clematis occidentalis ssp. grosseserrata


USDA Native Status: L48 (N), CAN (N)

A vine, creeping on ground or climbing over other vegetation, with 1 pale purplish-pink to blue-violet, bell-shaped flower at end of each leafless stalk growing from leaf axils.

The hanging, bell-like flowers and the silvery puffs of feathery fruit make this plant a delight to find in the woods. It is part of a complex of rather similar western plants. Cutleaf Clematis (Clematis occidentalis var. dissecta), restricted to north-central Washington, is more of a tufted plant; the leaflets are often dissected, with prominently toothed edges. Rocky Mountain Clematis (C. columbiana var. columbiana, once called C. pseudoalpina), found from Montana south to New Mexico and northeastern Arizona, is similar, but each of the three leaflets is divided into three smaller, jaggedly toothed leaflets. Matted Purple Virginís Bower (C. columbiana var. tenuiloba), found in Montana, Wyoming, and western South Dakota and south to northeastern Utah and central Colorado, has similar flowers, but plants form low mats rather than vines, and the leaves are even more finely divided.


From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Vine

Bloom Information

Bloom Time: May , Jun , Jul


USA: CO , ID , MT , OR , UT , WA , WY
Canada: SK
Native Habitat: Wooded or brushy areas in mountains, often on steep rocky slopes.

Additional resources

USDA: Find Clematis occidentalis var. grosseserrata in USDA Plants
FNA: Find Clematis occidentalis var. grosseserrata in the Flora of North America (if available)
Google: Search Google for Clematis occidentalis var. grosseserrata


Record Modified: 2017-10-03
Research By: TWC Staff

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