Ranunculaceae

Western blue virginsbower

Clematis occidentalis (Hornem.) DC.

Family: Ranunculaceae
Genus: Clematis

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Western blue virginsbower (Clematis occidentalis) — FlowerPhoto: John Brew, CC BY 4.0, from iNaturalist

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Common names

By language (2)

English: Western blue virginsbower
Persian: کلماتیس غربی

Synonyms

Atragene americana Sims
Atragene occidentalis Hornem.
Clematis alpina subsp. occidentalis (Hornem.) Kuntze
Clematis alpina var. occidentalis A.Gray
Clematis alpina var. verticillaris (DC.) Kuntze
Clematis verticillaris DC.
Clematis verticillaris var. cacuminis Fernald
Clematis verticillaris var. grandiflora B.Boivin

Flowers

In flower: May to June (from 1,129 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Vine
Lifespan: Perennial
In the US and Canada: Canada: native, Lower 48 states: native

Photos

FlowerPhoto: John Brew, CC BY 4.0, from iNaturalist
FlowerPhoto: Caleb Catto, CC BY 4.0, from iNaturalist
FlowerPhoto: Nathan Earley, CC BY 4.0, from iNaturalist
FlowerPhoto: Wendy McCrady, CC BY 4.0, from iNaturalist
FruitPhoto: Tom Norton, CC BY 4.0, from iNaturalist
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons
Photo: Tom Erler, CC0, from iNaturalist
Photo: Daniel McClosky, CC BY 4.0, from iNaturalist
Photo: Shane Johnson, CC0, from iNaturalist
Photo: Bea Leiderman, CC BY 4.0, from iNaturalist
Photo: drizard, CC0, from iNaturalist
Photo: Tom, CC0, from iNaturalist

More in Clematis

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.