Probably annual, with fibrous roots, growing in dense tufts. Stems erect or curved, setaceous or capillary, sulcate, smooth, 10-25 cm by c. ¼ mm. Leaves much shorter than the stems, flattish but very narrow, weak, obtusish, smooth, glabrous or sparsely hairy, with obliquely truncate, cinnamomeous, hairy sheaths, ⅓-½ mm wide; ligule absent. Inflorescence always consisting of a single, terminal spikelet. Spikelet erect, ebracteate, lanceolate or oblong-lanceolate, terete, acute, densely many-flowered, pale brown, 5-10 by 1½-2 mm. Glumes spiral, densely imbricate, thinly membranous, oblong-ovate or oblong, twice or more than twice as long as broad, scarcely keeled, minutely but distinctly mucronulate, ferrugineous, with green midnerve, otherwise nerve-less, glabrous, 2-2¾ mm long. Stamen 1; anther oblong-linear, ½-1 mm. Style slender, flat, not hyaline-margined, dilated at the base, sparsely ciliate, 1-1½ mm; stigmas 2, much shorter than the style. Nut biconvex, with acute angles, obovate, shortly stipitate, rounded at the apex (not um-bonulate), sparsely verruculose, reticulate-trabeculate by the transversely oblong, somewhat impressed epidermal cells in c. 15 vertical rows on either face, brown, ⅔-l by 3/5-4/5 mm.
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