Distribution: Introduced throughout the Pacific Northwest; widespread and common in eastern Washington

Habitat: Noxious weed of dry, disturbed areas

Flowers: July - September

Origin: Introduced from the eastern Mediterranean region

Conservation Status: Not of concern

Diffusely branched annual or biennial 1-6 dm. tall.

Leaves small, more or less pinnatifid, the lower ones early deciduous, the reduced ones or the inflorescence mostly entire.

Heads numerous, narrow; involucre 8-10 mm. high, the middle and outer bracts coarsely comb-like and tipped with a slender spine 1.5-4 mm. long; flowers few, white or rose-purple, the marginal ones not enlarged; pappus wanting; receptacle densely bristly.