Rhizome short, woody. Culms up to 33 cm tall, trigonous, pubescent, clothed at base with dark brown sheaths disintegrating into fibers. Leaves surpassing culm, blades broadly linear, 6-10 mm wide, flat, pubescent on both faces, base plicate, apex acuminate. Involucral bracts shortly bladed, pubescent, long sheathing. Spikes 4, approximate; terminal spike male, narrowly cylindric, ca. 3.5 cm, with long pubescent peduncles; lateral spikes 3, androgynous, bearing a short male part at apex, cylindric, 3.5-4.2 cm, subdensely flowered, with pubescent peduncles. Female glumes yellow-white, lanceolate, ca. 5 mm, pubescent, green 3-veined costa excurrent into a mucro. Utricles yellow-brown, slightly longer than glume, obliquely patent, ovate-elliptic, ca. 8 mm, papery, densely pubescent, many veined, base cuneate, apex abruptly contracted into a long beak ca. 3 mm, orifice 2-toothed. Nutlets black, tightly enveloped, rhomboid-obovate, ca. 4 mm, trigonous with angles constricted at middle, faces concave at base, base with short curved stipe, apex abruptly contracted into a long erect beak ca. 1.5 mm, beak expanding into an annulate orifice; style base thickened; stigmas 3. Fl. and fr. Apr-May.
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