Stout biennial to 1 m, sparsely hairy at base; cauline lvs lanceolate to elliptic or oblong, 3-10 cm, narrowed to the base, chiefly sharply and remotely dentate, ±hairy; pet 3-5 mm; pedicels erect in bud, widely divergent at anthesis, in fr reflexed and 7-12 mm; frs pendulous, flat, ±curved, 7-11 cm נ2-3.5 mm, prominently veined; seeds in 1 row, 3 mm long, as wide as the valve, the wing 0.5-1 mm wide; 2n=14. Woods; Me. to Minn., s. to Ga. and Tex. May-July.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.