Page authors: Don Knoke, David Giblin
Erigeron strigosus
branched fleabane, daisy fleabane
Specimens
Photos

Distribution: Occurring on both sides of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to the Atlantic Coast.

Habitat: Roadsides, fields, thickets, forest edge, and other open, disturbed areas from low to middle elevations.

Flowers: May-October

Origin: Native

Conservation Status: Not of concern

Description:
General:

Mostly annual, 3-7 dm. tall, with scanty foliage.

Leaves:

Leaves all cauline, entire, linear to lanceolate.

Flowers:

Heads several to numerous, small; involucre 2.5-5 mm. high, hairy and somewhat glandular; rays 50-100, pistillate, white, up to 6 mm. long and 0.4-1 mm. wide; disk corollas 1.5-2.6 mm. long, yellow; pappus of 10-15 very fragile bristles and some short, slender scales, the bristles wanting in the ray flowers.

Accepted Name:
Erigeron strigosus Muhl. ex Willd.
Publication: Sp. Pl., ed. 4 [Willdenow] 3(3): 1956. 1803.

Synonyms & Misapplications:
(none provided)
Infraspecies:
var. septentrionalis – prairie fleabane    Occurring on both sides of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California, east to Idaho and Wyoming, the Great Plains, and northeastern North America.
var. strigosus – branching fleabane, daisy fleabane    Occurring on both sides of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to the Atlantic Coast.
Additional Resources:

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

WA Flora Checklist: Erigeron strigosus checklist entry.

E-Flora BC: Erigeron strigosus atlas page.

CalPhotos: Erigeron strigosus photos.

USDA Plants: Erigeron strigosus information.

35 photographs:
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