Culms (23–)30–100 cm. Leaves 3–7 per culm; sheaths tight, inner band hyaline or straw colored, 6–18 cm, apex concave, glabrous; ligules rounded, 1–2.5 mm; blades plicate, 30–70 cm × 1.6–5 mm, widest leaf (2.6–)2.9–5 mm wide. Inflorescences (2.2–)3–8.5 cm; spikes 3–8; lateral spikes 3.6–11.2 mm, sessile, pistillate or gynecandrous, staminate portion 2-flowered, to 1 mm, pistillate portion 6–28-flowered, 3.6–11.2 mm; basal 2 spikes (5–)10–40 mm apart; terminal spike 7–15.5 mm, gynecandrous with staminate portion 3–14-flowered, 2–11(–14) × 0.8–1.6 mm and pistillate portion 10–25-flowered, 4.1–8 × 6.1–7.7 mm. Pistillate scales ovate, 1.4–2.2 × 1.1–2 mm, apex obtuse to acute. Staminate scales narrowly ovate, 1.6–2.4 × 1.1–1.9 mm, apex obtuse to acute. Anthers 0.8–1.45 mm. Perigynia spreading to reflexed, olive green, 6–14-veined abaxially, 0–5-veined adaxially, broadly to narrowly ovate, (2.8–)3–4.4 × 1.3–1.9(–2.1) mm, (1.6–)1.8–2.5 times as long as wide; beak 0.9–1.75 mm, 0.43–0.85 length of body, serrulate, teeth 0.15–0.35 mm. Achenes ovate, 1.1–1.8 × 0.9–1.4 mm.
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Much like no. 52 [Carex wiegandii Mack.], but with a longer, more open infl mostly 3–8.5 cm, the lowest spikes set 1–4 cm apart; lvs ± equaling the stems, plicate to flat; perigynia 3–4.5 mm, olive-green, and only the prominent, 0.9–1.8 mm beak serrulate. Moist woods and boggy meadows and balds; Blue Ridge, from sw. Va. to nw. S.C. and ne. Ga. (C. muricata var. r.)
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