Carex flacca Schreb.
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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 - Vigorously colonial by creeping rhizomes, 2–6 dm; main lvs 2–5 mm wide; terminal spike staminate, 1–3 cm, long-peduncled; pistillate spikes 1–3 cm; pistillate scales ovate, with broad, pale midvein and brown sides, acute to short-acuminate or mucronulate; perigynia elliptic-obovoid, minutely hispidulous distally, nerveless or nearly so, even the lateral ribs inconspicuous, abruptly narrowed to a minute beak; achene rounded-trigonous, bent-apiculate. Native of Eurasia and n. Afr., intr. in fields and meadows from N.S. and Que. to Ont. and N.Y. (C. glauca)