Erigeron acris
bitter fleabane

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the northern Great Plains, Great Lakes region, and northeastern North America; circumboreal.

Habitat: Meadows, forest openings, and open slopes from middle elevations to the subalpine.

Flowers: June-September

Origin: Native

Growth Duration: Annual, Biennial, Perennial

Conservation Status: Not of concern

Pollination: Bees, butterflies, flies, apomixis?


Biennial or perennial, 0.5-8 dm. tall, often covered with stiff, blunt hairs.


Basal leaves oblanceolate or spatulate, the cauline ones ample to strongly reduced, lance-ovate to linear-oblong;


Heads usually several on somewhat glandular, curved peduncles; involucral bracts tapered and pointed; rays pistillate, numerous, erect, inconspicuous, white, up to 4 mm. long and 0.4 mm. wide; inner pistillate flowers rayless; pappus surpassing the disk flowers.

Accepted Name:
Erigeron acris L.
Publication: Sp. Pl. 2: 863. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Erigeron acris checklist entry

OregonFlora: Erigeron acris information

E-Flora BC: Erigeron acris atlas page

CalPhotos: Erigeron acris photos

22 photographs:
Group by