Distribution: British Columbia to California, east to Colorado
Habitat: Open woods at moderate to mid-elevations in the mountains.
Flowers: June - August
Conservation Status: Not of concern
Perennial from fibrous roots and a short rhizome, 3-13 dm. tall, a few long hairs on the lower stem, with milky juice.
Basal and lower cauline leaves persistent and tufted, mostly entire, 4-17 cm. long including the short petiole, and 1.2-4.5 cm. wide; middle and upper leaves sessile and reduced; stellate hairs wanting.
Heads several to many in an open inflorescence, on slender peduncles; involucre 6-11 mm. high, narrow, blackish-green, nearly glabrous; corollas 13-34, all ligulate and white; pappus of whitish capillary bristles.
Achenes ribbed and grooved longitudinally.