Lvs orbicular in outline, with 3-5 entire triangular lobes, cordate at base; fls white, the pet 5-7 cm; 2n=52. Native of C. Amer., cult. in s. U.S. and often appearing in our range as a waif along railways from the south.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.