Cyperus echinatus (L.) Alph.Wood
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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 - Perennial; stems 3–10 dm, smooth; lvs flat, 3–8 mm wide; bracts 4–7, the lowest much elongate and surpassing the infl; infl with 1 or 2 sessile terminal spikes and usually 2–10 ascending rays to 10 cm; spikes globose, 8–15 mm thick; spikelets very numerous, closely packed and radiating in all directions, 3–7.5 mm, 1–3-fld; scales oblong-elliptic, obtuse, multinerved, the lower 3.5–4.2 × 1.5–2 mm; achenes trigonous, 1.8–2.2 mm, a third as thick. Dry woods and fields; sc. Conn. and s. N.Y. to s. O., Ill., and e. Kan., s. to n. Fla. and ne. Mex. (C. ovularis)
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Common Names
globe-flatsedge