Page authors: Don Knoke, David Giblin
Grindelia hirsutula

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.

Habitat: Coastal bluffs, forest openings, alluvial areas, and disturbed sites at low to middle elevations.

Flowers: May-October

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, butterflies, beetles


Glabrous biennial or short-lived perennial, 1.5-8 dm. tall.


Leaves entire, or often with some small teeth, narrowly oblanceolate, up to 10 cm. long and 1.5 cm. wide, somewhat resinous.


Heads rayless, 1-1.5 cm. wide; involucre strongly resinous, its bracts firm, herbaceous-tipped; flowers yellow, the inner sterile; pappus of 2 or more deciduous awns.


Mature achenes with one or more apical knobs.

Accepted Name:
Grindelia hirsutula Hook. & Arn.
Publication: Bot. Beechey Voy. 147. 1833.

Synonyms & Misapplications:
Grindelia arenicola Steyerm.
Grindelia integrifolia DC. var. macrophylla (Greene) Cronquist [HC]
Grindelia nana Nutt. var. integerrima (Rydb.) Steyerm.
Grindelia nana Nutt. var. integrifolia Nutt. [HC]
Grindelia squarrosa (Pursh) Dunal var. quasiperennis Lunell [HC]
Additional Resources:

PNW Herbaria: Specimen records of Grindelia hirsutula in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Grindelia hirsutula checklist entry.

OregonFlora: Grindelia hirsutula information.

E-Flora BC: Grindelia hirsutula atlas page.

CalPhotos: Grindelia hirsutula photos.

USDA Plants: Grindelia hirsutula information.

26 photographs:
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