Carex tetanica Schkuhr
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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 2–6 dm, in small clumps on long, slender, deep-seated, pale rhizomes, phyllopodic (at least the fertile stems) and often fibrillose at base, only seldom purplish below; lvs flat, 2–4.5 mm wide, surpassed by the stems; terminal spike staminate, strongly rough-pedunculate, 1.5–4 cm; pistillate spikes 1–3, mostly widely separated, erect on slender peduncles, 7–40 × 3–5 mm; bracts long-sheathing, the blade shorter than the stem; pistillate scales ovate, obtuse to acuminate or short-awned, brownish-purple-tinged with 3-nerved green center and hyaline margins; perigynia overlapping in mostly 3 rows, obovoid-fusiform, 2.5–3.5 mm, obscurely trigonous, with numerous fine nerves and 2 more prominent lateral ribs, broadest (1.5–2 mm) above the middle and evenly and broadly tapered or rounded to the beakless tip; achene broadly obovoid-trigonous, with concave sides, filling the perigynium; 2n=56. Meadows and low woods; Mass. to N.J. and Va., w. to Minn., Alta., and Nebr.