Stem(s) slender, erect, 6-12 dm, glabrous or nearly so; stipules slender, 2-6 mm, caducous; petioles slender, about equaling the lateral lfls; lfls thin, ovate or oval, 1.5-3.5 cm, glabrous, or inconspicuously hairy beneath; fls 4-6 mm, on pedicels 8-19 mm; cal 2-3 mm; stipe 1.5-2.5 mm; articles 1-3, somewhat obovate, 4-5 נ3-3.5 mm. Dry upland woods and thickets; Mass. to Mich., and Mo., s. to Fla. and Tex. July, Aug.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.