Culms slender and weak, 2-6 dm, without rhizomes; sheaths scaberulous; lvs to 10 cm, 1-2 mm wide; ligule truncate, to 1(-1.5) mm; infl lax, 5-15 cm, the slender branches paired, bearing a few spikelets above the middle; spikelets 3.5-4.5 mm, 2-5- fld; glumes lanceolate, scarious-margined, the first 1.7-2.2 mm, the second 2-2.8 mm; lemmas 2.5-3.3 mm, short-villous on the keel and marginal veins, glabrous on the obscure intermediate veins, webbed at base; anthers 0.5-0.7 mm. Bogs and wet woods; N.Y. and Pa. to Wis., Ill., and e. Minn.; rarely collected.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.