Page authors: Don Knoke, David Giblin
Adenocaulon bicolor
pathfinder, trailplant

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

Habitat: Moist, shady woods at low to middle elevations.

Flowers: June-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Somewhat glandular, slender perennial from fibrous roots, up to 9 dm. tall.


Leaves mostly near the base, long-petiolate, large and thin, deltoid-ovate to cordate, 3-15 cm. wide; leaves nearly glabrous above and white-woolly beneath, coarsely toothed to entire.


Involucre of less than 10 equal green bracts about 2 mm. long, reflexed in fruit; flowers whitish, tubular, the outer 3-7 pistillate, the inner about as many and staminate; pappus none.


Achene clavate, 5-8 mm. long.

Accepted Name:
Adenocaulon bicolor Hook.
Publication: Bot. Misc. 1: 19, plate 15. 1829.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Adenocaulon bicolor in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Adenocaulon bicolor checklist entry.

E-Flora BC: Adenocaulon bicolor atlas page.

CalPhotos: Adenocaulon bicolor photos.

USDA Plants: Adenocaulon bicolor information.

45 photographs:
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