Plants cespitose. Culms angled, 25-75 cm, glabrous. Leaves: basal sheaths red-brown; sheaths of proximal leaves glabrous, fronts lacking spots and veins, entire, apex truncate; blades 3-5 mm wide. Inflorescences: proximal bract subequal to inflorescence, 1-3 mm wide. Spikes erect or the proximal pendent; proximal 3-4 spikes pistillate, usually sessile, 2.5-9 cm × 4-5 mm, base attenuate; terminal 1-2 spikes staminate. Pistillate scales purple-brown to black, shorter than perigynia, apex acute, awnless. Perigynia divergent, green, veinless, somewhat flattened, tightly enclosing and distended by the achenes, ovoid, 2.3-4.7 × 1.1-1.8 mm, dull, apex acute, glabrous; beak green, often twisted, 0.1-0.3 mm, orifice oblique. Achenes not constricted, dull. 2n = 66. Fruiting Jun. Rocky streambeds, banks; 0-1500 m N.B., N.S., Ont., Que.; Ark., Conn., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Vt., Va., W.Va. A very common riverine species of eastern North America, Carex torta has an almost identical habit and habitat to the western C. nudata. Carex torta is, however, not a member of the C. stricta subgroup and has unusual green, glabrous perigynia that taper into a triangular, twisted beak with an obliquely bidentate orifice. Carex torta appears to be somewhat transitional to the Cryptocarpae group, based on the pendent spikes, sheath morphology, and large achenes.