Page authors: Don Knoke, David Giblin
Euthamia occidentalis
western goldenrod, western goldentop

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Great Plains of the U.S.

Habitat: Stream and river banks, lake and pond margins, wetlands, and other moist areas at low to middle elevations.

Flowers: July-October

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles, wasps


Stout perennial from creeping rhizomes, 5-20 dm. tall, glabrous throughout.


Leaves numerous, sessile, lance-linear, tri-nerved, up to 10 cm. long and 1 cm. wide, the lower early-deciduous.


Inflorescence ample, leafy-bracteate, usually interrupted and elongate, the heads in small, tight clusters; involucre about 4 mm. high, pale green or yellowish, the bracts narrow and pointed; rays 15-30, 1.5-2.5 mm. long, yellow, more numerous than the yellow disk flowers; pappus of numerous capillary bristles, equal and white.

Accepted Name:
Euthamia occidentalis Nutt.
Publication: Trans. Amer. Philos. Soc., n. s. 7: 326. 1840.

Synonyms & Misapplications:
Euthamia californica Gand.
Euthamia linearifolia Gand.
Solidago occidentalis (Nutt.) Torr. & A. Gray [HC]
Additional Resources:

PNW Herbaria: Specimen records of Euthamia occidentalis in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Euthamia occidentalis checklist entry

OregonFlora: Euthamia occidentalis information

E-Flora BC: Euthamia occidentalis atlas page

CalPhotos: Euthamia occidentalis photos

27 photographs:
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