Carex lupulina Muhl. ex Willd.
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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 - Stems 2-13 dm, smooth, solitary or few together from long, dark, scaly, sympodial rhizomes; basal sheaths persistent, reddish to brownish; lvs evidently septate-nodulose, 4-15 mm wide, the uppermost nonbracteal one with a sheath 1.5-25 cm; terminal spike staminate, 1.5-8.5 cm, its peduncle 0.5-6 cm and surpassed by to about equaling the uppermost pistillate spike; pistillate spikes (1)2-5, ascending, ovoid to cylindric, 1.5-6.5 × 1.3-3 cm, pedunculate but the upper generally crowded, their subtending bracts leafy, 13-55 cm, basally sheathing; pistillate scales 6-15 mm, slender, acute or with a rough awn to 6 mm; perigynia 8-80, ascending, smooth and shiny, strongly 13-22-nerved, 11-19 × 3-6 mm, including the conic beak, this 6-10 mm, bidentate, its teeth smooth or nearly so; achene loosely enveloped, 3-4(-4.5) × 1.7-2.8 mm, ± stipitate, somewhat rhomboid, trigonous with flat to concave faces and smoothly curved, somewhat thickened lateral angles; style persistent and becoming bony, strongly contorted at or near the base; 2n=56. Moist to wet woods, meadows, and marshes; N.S. and N.B. to Minn. and Nebr., s. to Fla. and Tex.