Rhizome slender, ca. 1 mm thick, covered with red-brown scales. Culms tufted, 5-20 cm tall, filiform, scabrid above. Leaves many, radical, elongate after anthesis, longer than culms, blades 2-3 mm wide, flattish, soft; sheaths sanguineous-purple or dusky-brown, split into reticulate fibers. Inflorescence 1-spiked, terminal, androgynous; male part linear to linear-oblong, 1-1.5 mm thick, several flowered; female part 1-2 cm, loosely bearing 3-8 flowers. Female glumes pale laterally, stained with sanguineous brown on upper half or 1/3, oblong to obovate-oblong, ca. 3.5 mm, membranous, greenish costa 1-or obscurely 3-veined, base clasping rachilla, apex obtuse to subtruncate. Utricles pale greenish to pale yellowish, slightly longer than glumes, erect-patent to patent, obovate-oblong to obovate-elliptic, trigonous, 3.5-4 mm, thinly herbaceous to membranous, sparsely hirsute on upper half, nerveless except 2 costas, base gradually tapering into short stipe, apex abruptly contracted into short, recurved, conic beak, orifice not toothed. Nutlet tightly enveloped, obovate-oblong, trigonous, 2-2.5 mm; stigmas 3.
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