Page authors: Don Knoke, David Giblin
Erigeron corymbosus
foothill fleabane, longleaf fleabane

Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to eastern Oregon, east to Montana, Wyoming, and Utah.

Habitat: Open, usually dry places, often among sagebrush.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern


Perennial with a tap-root, 1-5 dm. tall, sub-erect, generally purplish at the base, the herbage covered densely with short, spreading hairs.


Basal leaves triple-nerved, elongate, acute, tapering gradually below, up to 25 cm. long including the petiole, and 1 cm. wide; cauline leaves reduced.


Heads 1-16 in an open inflorescence; involucres 5-7 mm. high, grey-hairy, its bracts somewhat imbricate; rays 35-65, pistillate, deep blue or occasionally pink, 7-13 mm. long; pappus double, the inner of 20-30 bristles.

Accepted Name:
Erigeron corymbosus Nutt.
Publication: Trans. Amer. Philos. Soc., n. s. 7: 308. 1840.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Erigeron corymbosus checklist entry.

E-Flora BC: Erigeron corymbosus atlas page.

CalPhotos: Erigeron corymbosus photos.

USDA Plants: Erigeron corymbosus information.

41 photographs:
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