Another widespread tropical sp. of the subg. Kyllinga, extends on the coastal plain to n. N.C. and may be sought in se. Va. It is a mat-forming, aromatic perennial with conspicuously white spikelets, and with the achenes more than half as wide as long, purple-black except for the ochroleucous apiculus and short stipe.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.