Page authors: Don Knoke, David Giblin
Helianthus cusickii
Cusick's sunflower, turniproot sunflower

Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho and Nevada.

Habitat: Sagebrush, grasslands, dry slopes, and other open areas at low to middle elevations.

Flowers: April-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Perennial from a turnip-shaped taproot, the stems clustered, decumbent, freely-branched, 2-12 dm. tall, the herbage rough-hairy.


Leaves lanceolate or narrower, entire, triple-nerved, 3-12 cm. long and 2-15 mm. wide, nearly sessile.


Heads few on each stem, the disk 12-25 mm. wide, yellow; involucral bracts lance-linear, long-pointed, with conspicuous spreading hairs; rays usually 8 or 13, 2-3.5 cm. long, yellow; receptacle chaffy throughout; pappus of 2 readily deciduous awns.


Achenes clasped by the inner involucral bracts.

Accepted Name:
Helianthus cusickii A. Gray
Publication: Proc. Amer. Acad. Arts. 21: 413. 1886.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Helianthus cusickii in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Helianthus cusickii checklist entry.

E-Flora BC: Helianthus cusickii atlas page.

CalPhotos: Helianthus cusickii photos.

USDA Plants: Helianthus cusickii information.

29 photographs:
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