Loosely colonial from short, stout rhizomes, 10-15 dm; sheaths glabrous; lf-blades 1-2 dm נ1-2 cm; infl open, nodding or drooping; spikelets green, nodding on slender pedicels, ovate or lance-ovate, 6-17-fld, (15-) 20-40 mm; glumes and the 1-2 sterile lemmas lance-linear, subequal, two-thirds as long as the lance-ovate fertile lemmas, these 11-15-veined, with pilose callus; palea much shorter than the lemma; grain 3-5 נ2-2.5 mm, mostly enclosed between the lemma and palea; 2n=48. Moist woods and streambanks; N.J. to Ga. and nw. Fla., w. to s. O., Ind., Ill., Kans., and Tex. (Uniola l.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.