Distribution: Alaska south to Idaho, east to Minnesota; rare in the Pacific Northwest.
Habitat: Cold bogs.
Flowers: July - September
Conservation Status: Threatened in Washington (WANHP)
Slender perennial from slim, creeping rhizomes, the stem 1.5-8 dm. tall, glabrous below, becoming puberulent in lines upward.
Leaves linear, 2-5 mm. wide, slightly clasping, entire, the lowermost reduced and early-deciduous.
Inflorescence short and broad, the heads few, small, the disk 7-13 mm. wide; involucre 5-7 mm. high, glabrous, its slender, pointed bracts somewhat imbricate, often with purple tips and margins; disk flowers yellow; rays 20-50, white or pale bluish, 7-15 mm. long; pappus of numerous capillary bristles.
Fruit an achene.