Page authors: Don Knoke, David Giblin
Delphinium glaucum
pale larkspur

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and the Canadian Great Plains.

Habitat: Meadows and wet thickets, bogs, streambanks, and coniferous forest openings at middle elevations in the mountains.

Flowers: July-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, flies, butterflies, hummingbirds


Stout, glabrous and glaucous perennial from thick rhizomes, the several simple, hollow stems 10-20 dm. tall.


Leaves numerous, gradually reduced upward, all divided over half their length into five broad, wedge-shaped segments, these sharply 2-3 times toothed; the blades of the lower leaves may be 15-20 cm. broad.


Inflorescence a simple or compound raceme, rather elongate and loosely many-flowered; sepals 5, deep blue-purple, oblong-elliptic, 6-12 mm. long, the spur straight, shorter than the blade of the upper sepal; petals 4, small, pale blue; stamens numerous; pistils 3.


Follicles erect, 10-14 mm. long, glabrous.

Accepted Name:
Delphinium glaucum S. Watson
Publication: Bot. California. 2: 427. 1880.

Synonyms & Misapplications:
Delphinium scopulorum A. Gray var. glaucum (S. Watson) A. Gray
Delphinium splendens G.N. Jones
Additional Resources:

PNW Herbaria: Specimen records of Delphinium glaucum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Delphinium glaucum checklist entry.

OregonFlora: Delphinium glaucum information.

E-Flora BC: Delphinium glaucum atlas page.

CalPhotos: Delphinium glaucum photos.

USDA Plants: Delphinium glaucum information.

44 photographs:
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