Leaves linear, flat, gradually attenuate at both ends, glaucescent, aculeate-scabrous on the margins and especially at the filiform, triquetrous top, up to 30 cm by (2-)4-5 mm. Scapes very slender, filiform, terete or obtusangular, slightly asperous-furfuraceous, 5-10 cm by ⅓-½ mm, in the middle often with a single, tubular, ½-2 cm long sheath split up at the top, the base clothed with some lanceolate, fuscous, bladeless sheaths. Inflorescence consisting of a single spikelet. Spikelet small, at first linear-ellipsoid, when in fruit obovoid or ellipsoid, 4-7 by 3-4 mm. Glumes ovate, obtuse, 2 by 1½ mm. Flowers c. 1¾ mm long; hypogynous scales (5-)6, the anticous one present in the majority of flowers, but smaller than the upper scales. Stamens 2; anthers elliptic-oblong, ⅓-2/5 mm long. Stigmas 4 (or in a few flowers 3). Nut fusiform-sublageniform, narrowed at both ends, subterete, slightly angular by 4 longitudinal ribs, shortly stipitate, with short, obtuse beak scarcely distinct from the nut proper, smooth, stramineous to brown, 2 by 1 mm.
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