Infl very dense, the short pedicels mainly concealed; principal spikelets 8-12 mm, the pistillate with 4-9 (typically 5) fls, the staminate with 8-12 fls; first glume 1.7-3 mm, the second 2.4-3.8 mm; lemmas 3.3-4.5 mm. Salt marshes along the coast from N.S. and P.E.I. to tropical Amer., and on the Pacific coast.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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