Cyperus grayi Torr.
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Authority
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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Family
Cyperaceae
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Scientific Name
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Description
Species Description - Slender perennial 1–4 dm, the basal corms prominent; lvs rigid, folded, ± recurved, shorter than the glabrous stem; bracts 3–7, divergently ascending, the longer usually surpassing the infl; rays (2–)4–10(–16), to 8 cm; spikes loosely fld, subglobose, 6–25 mm thick; spikelets radiating in all directions from a very short axis, to 12 mm, 2–10-fld; scales approximate, clearly overlapping vertically, ovate, 1.8–2.8 mm, blunt, scarcely mucronulate, multinerved; rachilla-joints with conspicuous hyaline wings; achenes trigonous with flat sides, 1.5–2 mm, a third to half as thick; 2n=ca 166. Dunes and dry, sandy soil, chiefly on the coastal plain; se. N.H. to Ga.