Cinna latifolia (Trevir. ex Göpp.) Griseb.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Much like no. 1 [Cinna arundinacea L.]; nodes usually 3-7; lvs to 15 mm wide; ligules colorless or nearly so; infl lax and open, with slender, divaricate or recurved branches, pale green and somewhat shining; first glume 2.3-3.8 (avg 3) mm; second glume 1-veined, 2.6-4.1 (avg 3.3) mm, nearly glabrous except on the keel, the scarious margins constituting half the total width; awn to 1.5 mm; 2n=28. Moist woods; circumboreal, s. to Pa., n. Ill., Minn., and Calif., and in the mts. to N.C.