General: Coarse annual, tar-scented herb, conspicuously hairy and with stalked glands almost everywhere; stems leafy, 20-100 cm tall.
Leaves: Alternate, linear to narrowly oblong, entire or slightly toothed; lower leaves somewhat crowded, 3-18 cm long.
Flowers: Ray flowers yellow, mostly about 13, 3-7 mm long; disk flowers yellow, fertile; involucre broadly urn-shaped, 6-12 mm high and about as wide, the bracts covered in stalked glands; heads several, in open, leafy to dense clusters.
Fruits: Achenes, flattened, curved and lopsided; ray achenes enfolded by the involucral bracts; pappus lacking.
Ecology: Roadsides, clearings, other dry, open, disturbed sites; common at low elevations in the southern part of our region, from northwestern Washington south to California; also in adjacent southern B.C., where possibly introduced.