Dioecious; stems 1-3 dm, cespitose from stout woody rhizomes, much shorter than the lvs; main lvs 3-5 mm wide; spike 1, linear, 2-4 cm, the basal scales usually sterile and somewhat elongate, the flowering scales usually purple with paler midnerve and narrow hyaline margins, the uppermost often short-cuspidate; perigynia narrowly oblong-obovoid, 3-angled, many-nerved, 4-5 mm, a third as wide, yellowish-green or suffused with purple, acute, hairy distally; achene 3-4 mm, filling the perigynium; no rachilla. Dry woods; s. Ind., Tenn., Ala., and La.; fl Mar., Apr.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.