Distribution: Introduced from Europe and occasionally escaping, established in scattered localities east of the Cascades in Washington.
Habitat: Disturbed soil.
Flowers: May - June
Origin: Introduced from Europe
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bumblebees, bees
Erect, stiff-hairy annual, the stems simple or branching, 1.5-5 dm. tall.
Leaves alternate, basal and cauline, bipinnately dissected.
Flowers single on long, coarsely-hairy peduncles, nodding in the bud; receptacle not flared; sepals 2, 5-10 mm. long, bristly, separately early-deciduous; petals 4, scarlet with a black base, 1.5-2.2 cm. long, obovate; stamens numerous; style absent, stigma sessile, disk-like, with 5-15 round, stigmatic ridges.
Capsule oblong-obovoid, 1.5-2 cm. long, prominently ribbed, covered with stiff bristles.