Distribution: East of the Cascades in Washington; Washington south to California, east to Idaho, Utah and New Mexico.
Habitat: Sagebrush deserts and dry ponderosa pine forest openings; tolerant of dry, disturbed conditions.
Conservation Status: Not of concern
Upright annual 5-50 cm. tall with a single stem topped by a freely-branched inflorescence, and with numerous, petiolate leaves in a whorl a short distance above the base.
Sub-basal, the blade oval to broadly elliptic, 5-30 mm. long, gray-woolly beneath and gray-green above, the slender petiole 1-3 times as long as the blade.
Inflorescence freely-branched, with involucres 1 per node and sessile at the branch junctions and along the branches and on the branch tips, varying from cylindric and strongly ribbed up to 3 mm. long to cup-shaped and without ribs, 1.5-2 mm. long, and with the 5 lobes rounded and 1/5 the total length; tepals 1.5-2.5 mm. long, narrowly cup-shaped, white, pink or yellow.