Distribution: Occurring east of the Cascades in northern Washington; British Columbia south to northern Washington, east to Minnesota.
Habitat: Moist, usually saline ground, often along the shores of lakes and ponds.
Conservation Status: Not of concern
Simple or much-branched annual from a taproot, the stem 1-7 dm. tall, glabrous.
Leaves alternate, linear, 3-12 cm. long and 1-9 mm. wide, entire, the lower soon deciduous, with a few, coarse hairs on the margins.
Heads several in a paniculate inflorescence; involucre 5-11 mm. high, its bracts loose, linear, pointed, herbaceous, slightly imbricate; outer pistillate flowers numerous, with tubular-filiform corolla, not ray-like, the style much longer than the corolla; pappus of capillary bristles, soft and copious, longer that the corollas.