Distribution: Limited in distribution to a few localities west of the Cascades in Washington; widely distributed throughout much of North America.
Habitat: Drainage ditches, roadsides, old home sites, waste areas.
Conservation Status: Not of concern
Annual herbs with slender taproots, the stems 3-8 dm. tall, glabrous to sparsely puberulent.
Leaves alternate, all cauline, the lower petiolate, becoming nearly sessile upward; leaves many, the blades orbiculate, 1-5 cm. wide, 12- to 60-lobed, the lobes under 1.5 mm. wide.
Inflorescence a terminal, 6-30 flowered raceme, simple or with 2-3 branches; pedicles spreading, 1-3 cm. long; sepals 3, usually blue or purple, 8-18 mm. long, with a spur 12-20 mm. long, and with short, linear bracteoles at least 4 mm. below the sepals; petals 2, united, 2-lobed, paler and smaller than the sepals; stamens many, the filaments with the base enlarged; style 1.
Follicles 12-25 mm. long, puberulent.