Page authors: Don Knoke, David Giblin
Erigeron oreganus
Gorge fleabane, Oregon fleabane

Distribution: Occurring in the Columbia River Gorge in Washington; Columbia River Gorge in Washington to adjacent Gorge area in Oregon.

Habitat: Moist shady cliffs and ledges.

Flowers: May-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Threatened in Washington (WANHP)


Perennial from a stout, woody base and root, the lax stem 5-15 cm. long, covered with glands and loose, sticky hairs.


Basal leaves tufted, spatulate to obovate, coarsely toothed or incised, up to 9 cm. long and 2.5 cm. wide; cauline leaves well developed, broadly lanceolate to ovate or elliptic, up to 4 cm. long and 1 cm. wide.


Heads 1-several in a leafy inflorescence, the disk 9-13 mm. wide; involucre 5-7 mm. high, the bracts loose, equal, thin and green; rays 30-60, pink or white to bluish; disk corollas 3.4-4.7 mm. long, yellow; pappus simple, of 15-20 bristles that are curled and twisted above.

Accepted Name:
Erigeron oreganus A. Gray
Publication: Proc. Amer. Acad. Arts. 19: 2. 1883.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Erigeron oreganus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Erigeron oreganus checklist entry.

OregonFlora: Erigeron oreganus information.

E-Flora BC: Erigeron oreganus atlas page.

CalPhotos: Erigeron oreganus photos.

USDA Plants: Erigeron oreganus information.

14 photographs:
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