Spartina pectinata Link
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Stout, erect, 1–2 m, with long coarse rhizomes; main lvs 3–8 dm, 5–10+ mm wide, involute when dry, cuttingly scabrous on the margins, tapering to a long slender point; panicle 2–4 dm, the spikes 7–27, ascending or appressed, 5–12 cm, short-peduncled, the rachis prolonged but not surpassing the uppermost spikelets; spikelets crowded, closely imbricate, those on one side of the rachis less than 3 mm (usually ca 1.5 mm) apart; first glume 5–13 mm, three-fourths to fully as long as the lemma; second glume lanceolate, the body 10–13 mm, the rough midnerve prolonged into an awn 3–10 mm; 2n=28, 42, 84. Marshes, shores, and wet prairies; Nf. and Que. to Alta. and Wash., s. to N.C. and Tex., especially abundant in the prairie states. (S. michauxiana)