Carex adusta Boott
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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 - Densely tufted, aphyllopodic, 2–8 dm; main lvs surpassed by the stem, 3–4 mm wide; lowest bract dilated at base and often twice as long as its spike; spikes 4–15, gynaecandrous, 6–12 mm, subglobose, short-clavate at base, sessile and densely crowded in an ovoid or oblong cluster 2–3 cm; pistillate scales brown with narrow white-hyaline margins, largely concealing the perigynia; perigynia appressed-ascending or in age looser, oblong-ovate, strongly planoconvex, 4.2–5.2 mm, 2–2.5 times as long as wide, finely nerved dorsally, obscurely or scarcely so ventrally, narrowly serrulate-winged above the middle, merely sharp-edged below, rather abruptly narrowed to the flat, serrulate beak; achene lenticular, 2–2.5 × 1.5–2 mm; 2n=64. Dry, open places; Nf. to Mack., s. to N.Y., Mich., Minn., and B.C.