Cyperus tenuifolius (Steud.) Dandy
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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 - Tufted slender annual 0.5–3 dm; lower sheaths bladeless, the upper with soft blades 1–3 mm wide; bracts 2–4, widely spreading, 3–10 cm; spikes 1 or sometimes 2 or 3, ovoid to subglobose, strictly sessile, 5–10 mm; spikelets very numerous, flattened, 2–3 mm, 1- fld; scales very thin, with a ± denticulate keel and hyaline margins; stamens 2; anthers 0.2–0.4 mm; achenes tan, lenticular, elliptic, 1.1–1.4 mm, half as wide. Muddy or sandy shores; trop. Amer. and Afr., n. to Del., Pa., O., Mo., and Kan. (C. densicaespitosus; Kyllinga pumila)