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FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

177. Carex gynandra Schweinitz, Ann. Lyceum Nat. Hist. New York. 1: 70. 1824.

Carex gynandre

Carex crinita Lamarck var. gynandra (Schweinitz) Schweinitz & Torrey; C. crinita var. simulans Fernald; C. gynandra var. simulans (Fernald) Rolland-Germain

Plants cespitose. Culms acutely angled, 45–140 cm, scabrous. Leaves: basal sheaths red-brown or brown; sheaths of proximal leaves bladeless, scabrous, fronts red-brown to copper-brown, spots absent, indistinctly ladder-fibrillose; blades 12–55 cm × 4–10.5 mm. Inflorescences: peduncle of proximal spike 0.6–6.1 cm; proximal bract longer than inflorescence, 1.9–9.5 mm wide. Spikes 2–5 pistillate, 1–3 staminate, pendent; proximal pistillate spike 2.4–10.4 cm × 3–8.4 mm, base cuneate to acuminate. Pistillate scales pale brown to copper-brown, 3.1–8.2 mm (including awn), midvein reaching apex, apex of body acuminate or, rarely, truncate, awned. Perigynia ascending, pale brown, 0–5-veined abaxially, scarcely inflated, loosely enclosing achenes, ovoid to ellipsoid, 1.9–4.2 × 1.1–2.3 mm, dull, apex acute or obtuse, glabrous; beak 0.1–0.3 mm. Achenes variously constricted. 2n = 66, 68.

Fruiting Jun–Aug. Swamps, floodplain forests, wet meadows, marshes, bogs, stream edges, margins of lakes and ponds, roadside ditches; 0–2100 m; St. Pierre and Miquelon; N.B., N.S., Nunavut, Ont., P.E.I., Que.; Conn., Ga., Ky., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.


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