Principal lvs 1.5-5 cm, the lobes shallowly toothed, the terminal lobe markedly larger than the lateral ones; sep green; fls white with a light yellow eye, the pet 6-9 mm, shallowly emarginate; frs strongly flattened, obtuse above and below, oblong, 1-2 cm נ3.5-5.5 mm, the persistent style 2-3 mm; seeds 4-10, evidently winged, irregularly orbicular, 3-4 mm, the areolae of the reticulum much smaller over the embryo than on the wing; radicle straight; 2n=22. Ky. to Ga. and Ala. Ours is var. laciniata Rollins.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.