Page authors: Don Knoke, David Giblin
Delphinium nuttallii
Nuttall's larkspur

Distribution: Occurring west of the Cascades crest from Grays Harbor, Thurston, and Pierce counties south, and east in the Columbia River Gorge to Benton County in Washington; Washington to Willamette Valley in Oregon.

Habitat: Gravelly outwash prairies and basaltic cliffs.

Flowers: May-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Crisp-puberulent, eglandular perennial from small, globose, fleshy roots, the single stems 3-6 dm. tall.


Leaves long-petiolate, evenly distributed, the blades up to 10 cm. broad, 3-4 times dissected into narrowly lanceolate or linear segments.


Inflorescence simple to compound, the racemes spike-like above, the lower pedicels exceeding the numerous, crowded flowers; sepals 5, deep bluish-purple, 7-12 mm. long, slightly spreading, with a conspicuous median, pubescent, greenish band; spur equal to the sepals; petals 4, small, the lower pair deep purplish-blue, shallowly cleft, the upper pair light blue; stamens numerous; pistils 3.


Follicles about 15 mm. long, slightly bent.

Accepted Name:
Delphinium nuttallii A. Gray
Publication: Bot. Gaz. 12: 54. 1887.

Synonyms & Misapplications:
Delphinium nuttallii A. Gray ssp. nuttallii [FNA3]
Additional Resources:

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

WA Flora Checklist: Delphinium nuttallii checklist entry.

E-Flora BC: Delphinium nuttallii atlas page.

CalPhotos: Delphinium nuttallii photos.

USDA Plants: Delphinium nuttallii information.

17 photographs:
Group by