Page authors: Don Knoke, David Giblin
Eurybia conspicua
western showy aster

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to the northern Rocky Mountains and northern Great Plains.

Habitat: Open woods, from foothills to middle elevations in the mountains.

Flowers: July-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, butterflies


Stout perennial from a creeping rhizome, 3-10 dm. tall, strongly glandular above.


Leaves firm, usually sharply toothed, the lowermost small, elliptic, tapering to a short petiole, soon deciduous; the other leaves ample, 6-18 cm. long and 2-8 cm. wide, sessile, ovate to elliptic.


Heads several in an open, flat-topped inflorescence; involucre 8-12 mm. high, densely glandular, its bracts well imbricate, with fairly broad, papery base, tapering to a green tip; rays 12-35, 10-15 mm. long, blue or purple; pappus of numerous capillary bristles.

Accepted Name:
Eurybia conspicua (Lindl.) G.L. Nesom
Publication: Phytologia. 77: 259. 1995.

Synonyms & Misapplications:
Aster conspicuus Lindl. [HC]
Additional Resources:

PNW Herbaria: Specimen records of Eurybia conspicua in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Eurybia conspicua checklist entry

OregonFlora: Eurybia conspicua information

E-Flora BC: Eurybia conspicua atlas page

CalPhotos: Eurybia conspicua photos

45 photographs:
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