Tufted perennial, 3-10 cm. Rhizome short, with tillers and emitting ascending subterranean stolons. Stem obtusely trigonous to terete, grooved, smooth. Leaves from 2/3 to equalling stem; sheaths up to 2 cm, brown to yellow-brown, rather soft, mat, margin of scarious side deeply oblique; ligule to 0.3 mm, nearly straight; blades c. 0.5 mm wide, conduplicate, flexuous or curved, margins smooth, apex long attenuate, smooth or slightly scabrous. Inflorescence of 1-3 androgynous, or of 1 androgynous and 1-2 pistillate spikes, overlapping or lowest remote. Bracts clasping, mostly shorter than their spike. Spikes 5-12 x 3-5 mm, ovoid to obovoid, sessile or subsessile; female glumes 2.5-3 x 1.5-2 mm, obtuse to acute, yellowish and with hyaline margin to dark brown, midnerve yellowish, sides nerveles; utricles 2-2.5 x 1.1-1.3 mm, widely fusiform to obovoid, slightly inflated, lustrous, upper part yellowish or dark brown, weakly papillose, beak c. 0.1 mm. Stigmas 3. Nut 1.7-2 x 0.8-1 mm, ellipsoid to obovoid, plano-convex, trigonous, reticulate, yellowish to olive brown.