Stem(s) slender, erect, with few to many long, spreading hairs, 4-10 dm, with a large terminal panicle; stipules narrow, 2-4 mm, caducous; petioles spreading-hairy, 2-10 mm; lfls ovate-oblong to oval, very blunt, 1.5-2.5 cm, pilose on both sides, varying to subglabrous; fls 4-5 mm, on pedicels 4-9 mm; cat 2 mm; stipe 1-2 mm; articles 1-3, obliquely obovate, 3.5-5 נ3-4 mm, the lower margin gradually curved. Dry, often sandy soil; Mass. to Ind., Mo., and se. Kans., s. to Fla., Cuba, and Tex. July, Aug. (D. obtusum, probably misapplied)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.