"Erect annual or biennial, usually with many ascending branches, eventually to 5 dm; lvs pentagonal, the principal ones cleft nearly to the base with usually 5 segments, these deeply incised into several narrowly oblong lobes; peduncles 2-fld, the elongate pedicels glandular- villous; sep at anthesis 7–9 mm including the conspicuous subulate tip; pet retuse, equaling the sep; mature fr, including the cal, 20–25 mm, the stylar beak 4–5 mm, the carpel-bodies 3 mm, sparsely hirsute, not wrinkled. Open woods and fields; Nf. and Que. to B.C., s. to N.Y., Pa., Ind., Mo., and S.D. May–Sept."