Rhizomatous perennial to 5(-10) dm, the stems arising from axillary, cormose offshoots; lower sheaths hispid, the upper (and usually also the middle) ones glabrous; larger blades 5-15 cm נ3-10 mm, usually hispid-ciliate at least proximally, often also hairy on the surfaces, but the foliage smoother and stiffer than in no. 4 [Fuirena squarrosa Michx.]; spikelets 10-15(-20) mm, in 1-4 clusters; scales 3-3.5 mm, with mostly 3 strong median nerves convergent and exserted to form a spreading- recurved awn as long as the scale; bristles smoothish, short, incurved, rarely reaching the base of the pet- blades, these ovate or oblong, broadly acute to obtuse, sometimes apiculate; anthers 3, 1-1.3 mm; 2n=46. Bogs and wet sandy places; coastal plain from se. Va. to Fla. and Tex.; Cuba.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.