Tufted annual 1-4 dm; lvs 1-3 mm wide, shorter than the stem; bracts several, to 2.5 dm, 1-3 mm wide; spikes all sessile, or the 1-6 rays to 10 cm; spikelets 5-10, 15-20 נ2.5-3 mm, narrowly lanceolate in outline and acute; scales stramineous, narrowly oblong, 2.5-3.5 mm, acute or obtuse and minutely apiculate; stamens 2; achenes lenticular, obovate-elliptic, 1.2-1.7 mm. Brackish marshes and sandy beaches along the coast; Me. to Fla., La., and the W.I. (C. nuttallii; C. polystachyos, misapplied)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.