Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Montana and Nevada.

Habitat: Dry, open places from the foothills to mid-elevations in the mountains.

Flowers: June-August

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies

Low, sticky annual, often broader than high, the primary head only about 5 cm. above the ground.

Leaves few, pinnatifid, with narrow rachis and segments, the segments near the base.

Inflorescence of dense, leafy-bracteate, terminal heads, with naked side branches attached just below the heads also terminating in heads; calyx 6-10 mm. long, with 5 unequal lobes, and with broad translucent intervals between the herbaceous segments; corolla white to pale pink or lavender, shorter than the calyx, the 5 lobes very short; filaments 0.3 mm. long, inserted equally below the sinuses; style 3-parted, but two of the stigmas partly attached to each other; ovary superior.

Capsule often with only 2 cells because of a failure of a partition; seeds 2-4 per carpel.