Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to central Canada and midwestern U.S.
Habitat: Wet meadows, stream-banks and moist woodlands at moderate to mid-elevations in the mountains.
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.