General: Taprooted annual with an unpleasant odour; stems branched, bent at the base to upright, spreading-hairy, 10-60 cm tall.
Leaves: Egg-shaped to pentagonal in outline, pinnately deeply divided into 3-5 main segments that are themselves divided, sparsely hairy on both sides, light green but sometimes reddish.
Flowers: Pink to reddish-purple, or pink with white stripes; sepals glandular-hairy, bristle-tipped; petals 7-15 mm long; usually 2 per fairly long stalk.
Fruits: 5-parted capsules, the styles fused to form a central, pointed column 13-20 mm long.
Ecology: Clearings, meadows, grassy openings, open forests, mostly at low elevations; an introduced Eurasian weed established and fairly frequent in southwestern B.C. south to California (but rare in Western Oregon), rare northwards.