Cyperus difformis L.

• Authority

  Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

• Family

  Cyperaceae

• Scientific Name

  Cyperus difformis L.

• Description

  Species Description - Tufted annual 2–6 dm, bearing 2–4 bracts and several sessile or short- peduncled, globose, densely fld heads 8–12 mm thick; spikelets 4–8 mm, scarcely flattened, 10–40 fld; rachilla not winged; scales obovate-rotund, often broader than long, 0.5–0.8 mm, with reddish or brownish sides; stamen 1(–3); achenes light yellowish, trigonous, about equaling the scales. Wet soil; native of the Old World tropics, intr. in se. Va.