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Tufted, 2–5 dm; main lvs 2–4 mm wide, soft-hairy, especially on the lower side and on the sheaths, varying to glabrous; terminal spike peduncled, staminate, 1–2 cm; pistillate spikes 2–4, densely fld, short-cylindric, 8–15 mm, the lower short-peduncled, the upper subsessile; lower bracts exceeding the infl, the upper much smaller; anthers 1.7–2.8 mm; pistillate scales ovate, about as long as the perigynia, pale green, faintly brown-tinged, acute to cuspidate; perigynia ascending, ellipsoid, 2.1–2.8 mm, nearly round in cross-section, obscurely and finely nerved, beakless, obtuse; achene concavely trigonous. Moist woods and meadows; Nf. to Wis., s. to N.J. and O.
Culms 20–80 cm, pilose. Leaves: sheaths pilose; ligules longer than wide; blades 2–3 mm wide, pilose abaxially. Inflorescences: lateral spikes approximate or proximal distant, 5–20 × 4.5–7 mm; terminal spike staminate, 5–30 × 1–2.5 mm. Pistillate scales ovate, 2.2–3.2 × 1.1–1.5 mm, 2 times as long as wide, apex of proximal cuspidate, apex of distal acute or acuminate, as long as perigynia. Staminate scales oblong-obovate, 2.7–4.2 mm, apex acute or mucronate. Anthers 1.4–2.8 mm. Perigynia ascending or somewhat spreading, weakly 14–20-veined, elliptic-oblong, 2.3–3 × 1.1–1.5 mm, glabrous; beak absent. Achenes 1.8–2 × 1–1.2 mm. 2n = 70.
