Page authors: Don Knoke, David Giblin
Grindelia integrifolia
Puget Sound gumweed, Willamette Valley gumweed

Distribution: Occurring west of the Cascades crest in Washington at low elevations; British Columbia to northern California.

Habitat: Salt marshes, rocky shores along the coast, coastal headlands and bluffs, and various non-maritime habitats in the Puget Trough.

Flowers: April-January

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Perennial from a taproot and a branched, short, woody base, 1.5-8 dm. tall, usually covered with long, soft, curved hairs.


Leaves toothed or entire, the basal oblanceolate, up to 40 cm. long and 4 cm. wide, the cauline becoming sessile and clasping.


Heads usually several in a flat-topped inflorescence, hemispheric, the disk 1-3 cm. wide; involucral bracts somewhat glutinous, the long, slender green tips loose or spreading, not reflexed; rays 10-35, yellow, 8-20 mm. long; pappus of 2 or more awns.

Accepted Name:
Grindelia integrifolia DC.
Publication: Prodr. 5: 315. 1836.

Synonyms & Misapplications:
Grindelia hirsutula Hook. & Arn., misapplied [FNA, HC2, OFP, JPM2]
Grindelia integrifolia DC. var. integrifolia [HC]
Additional Resources:

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

WA Flora Checklist: Grindelia integrifolia checklist entry.

OregonFlora: Grindelia integrifolia information.

E-Flora BC: Grindelia integrifolia atlas page.

CalPhotos: Grindelia integrifolia photos.

USDA Plants: Grindelia integrifolia information.

54 photographs:
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