Distribution: Southern British Columbia and western Washington, east to Ontario and Tennesee.
Habitat: Rather dry, open places, from the valleys and plains to fairly high elevations in the mountains.
Flowers: Late June - October
Conservation Status: Not of concern
Glabrous perennial from a creeping rhizome, 2-9 dm. tall.
Leaves tending to be triple-nerved, the basal ones oblanceolate, up to 30 cm. long and 3 cm. wide, the others smaller and becoming sessile upward.
Involucre 3-5 mm. high; rays usually 8, yellow.