Sep 2; pet 4, yellow; ovary cylindric, bilocular; stigmas sessile, 2-lobed; fr elongate, usually curved, bilocular, dehiscent from the top downward by elongate valves; herbs with saffron-colored juice, large, pinnately lobed lvs, and large, yellow fls terminating the branches or on leafy-bracted axillary peduncles. 20, Eurasia.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.