Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, the Rocky Mountains, northern Great Plains, and central U.S.
Habitat: Wet meadows, stream banks and moist woodlands from middle elevations to the sublpine.
Conservation Status: Not of concern
Fibrous-rooted perennial from a short rhizome, essentially glabrous by flowering time, 3-7 dm. tall.
Leaves thin, the basal ones long-petiolate, the blades sharply toothed, ovate, cordate to truncate at the base, the cauline ones few, progressively reduced upward, becoming sessile, pinnatifid or incised toward their bases.
Heads several to many, the disk 8-13 mm. wide; involucre 5-8 mm. high; rays 6-10 mm. long, yellow.
The sub-cordate basal leaves that are sharply toothed but not otherwise divided is characteristic of this species.