Procumbent, forming mats to 5 dm wide; lvs dark green, linear to linear- oblong, blunt, rounded on both sides, to 15 mm; spikes 2-10 cm; bracts shorter (3-5 mm) and broader; cal at maturity 2 mm wide, the sep equal or nearly so, rounded on the back and at the tip; seeds 1-1.5 mm wide; 2n=36. Coastal salt-marshes; N.S. and se. Nf. to Me. and ne. Mass.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
