Cespitose, 2-5 dm, the stems and lvs filiform; cymes 1-3, small and loosely branched, each of the 3-6 spikelets on an elongate, capillary pedicel; spikelets ovoid,
3-4 mm, castaneous, 2-4-fld, with 1-3 frs; bristles 6, antrorsely barbellate, unequal, the longest to 0.5 mm; achenes brown, plump, broadly obovoid or subrotund, 1.2-1.5 mm, transversely ridged; tubercle flat, deltoid, 0.3-0.5 mm. Bogs and wet soil on the coastal plain; N.J. to Fla., Tex., and trop. Amer.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.