Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.

Habitat: Stream banks and other moist, low ground generally at low elevations.

Flowers: July-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, butterflies

Fibrous-rooted perennial, 1.5-12 dm. tall, nearly glabrous.

Leaves numerous, lanceolate, narrowed to a sessile base from which wings are formed along the stem, only slightly reduced upward, 4-15 cm. long and 5-40 mm. wide, usually shallowly toothed, the lowest early-deciduous.

Heads usually numerous, sub-globose, the disk yellow, 1-2 cm. wide; involucral bracts narrow, herbaceous, soon deflexed; rays 10-20, pistillate, wedge-shaped, 3-lobed, yellow, soon deflexed; pappus of several series of papery scales, lanceolate or ovate, long-pointed, 2 mm. long.

Achenes truncately obpyramidal, 4-5 angled and ribbed.