Page author: Don Knoke
Erigeron subtrinervis
three-veined fleabane
WTU images
WTU specimens
Other herbaria

Distribution: Washington to the Dakotas, south to Colorado, but not found in Oregon

Habitat: Moderately dry, open places at moderate to mid-elevations in the mountains

Flowers: July - August

Origin: Native

Conservation Status: Not of concern


Perennial from a short, woody base, 1.5-8 dm. tall, the stems clustered, amply leafy, spreading-hairy throughout.


Leaves triple-nerved, entire, the lower oblanceolate or spatulate, petiolate, mostly deciduous, the other becoming sessile but ample.


Heads 1-13 in a open inflorescence; involucre 6-9 mm. high; rays 65-150, blue or rarely white or pink, 9-18 mm. long and 1 mm. wide; pappus 20-30 bristles, a few of the outer ones shorter.

Accepted Name:
Erigeron subtrinervis Rydb. ex Porter & Britton
Publication: Mem. Torrey Bot. Club. 5: 328. 1894.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Erigeron subtrinervis checklist entry.

E-Flora BC: Erigeron subtrinervis atlas page.

CalPhotos: Erigeron subtrinervis photos.

USDA Plants: Erigeron subtrinervis information.

14 photographs:
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