S. europsea: leaves on long stalks, palmately 3-5-lobed, the lobes obovate or wedge-shaped, serrated; stems 1-1 1/2 feet high, bearing several capitate umbels in an irregular, slightly umbellate panicle; fruit ripening into little burrs in which the prickles almost conceal the calyx-teeth. - Woods. Fl. June, July.