Herbage glabrous. Leaf blades ± triangular, basal lobes spread­ing, usually 2-pointed, basal sinus rounded. Bracts distinct from sepals, 18–34 × (12–)14–26(–28) mm, proximally strong­ly keeled or saccate, margins usually slightly overlapping, not closely enfolding sepals. Flowers: corolla pink, 47–64 mm; stamens (24–)25–30(–32) mm.

Flowering Jun–Sep. Disturbed sites, hedges, road­sides, woodland edges; N.B.; Conn., Ky., Maine, Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Pa., Vt., Va., W.Va.