Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California.
Habitat: Sand and gravel bars along rivers, low to moderate elevations.
Flowers: June-Sept.
Origin: Native
Growth Duration: Perennial
Conservation Status: Sensitive in Washington (WANHP)
Pollination: Bees, butterflies, beetles
Perennial from a woody base, the several stems 2-5 dm. tall, covered with fine glands.
Lowermost leaves reduced and early-deciduous, the others uniformly distributed along the stem, entire, sessile, oblong to lance-ovate, 2-5 cm. long and 5-15 mm. wide.
Heads several to many in a somewhat flat-topped inflorescence; involucre 10-12 mm. high, its bracts imbricate, with transparent margins, tapering to a sharp point; corollas all tubular, yellow; inner pappus of capillary bristles, outer pappus of obscure scales.
PNW Herbaria: Specimen records of Heterotheca oregona in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Heterotheca oregona checklist entry.
OregonFlora: Heterotheca oregona information.
E-Flora BC: Heterotheca oregona atlas page.
CalPhotos: Heterotheca oregona photos.
USDA Plants: Heterotheca oregona information.