Rhizome stout, long, to 1.5 mm diam., whitish, smooth; cataphylls smooth, grey or whitish; shoots to 5-(10) cm, branching several times intravaginally at or above ground. Leaf-sheath shining white below, purplish above, striate, margins membranous, wide, glabrous. Ligule 0.1-0.2 mm, ciliate. Collar glabrous, swollen, recurved, very rarely with 1-2 long hairs. Leaf-blade 5-30 mm, distinctly divergent, folded, abaxially smooth, adaxially scabrid on ribs; margins incurved, thickened and scabrid. Culm to 2 cm, terete to usually laterally compressed, ridged, usually scabrid on ridges below spikelet otherwise glabrous, bearing 1 leaf or leaf reduced to sheath, and often a minute bract above. Spikelet 1, occasionally 2-3, peduncles narrowly ovate, lanceolate, c. 1 mm wide. Glumes indurated, lower usually absent, if present much reduced, occasionally complete and awned, to c. 4.5 mm, upper glume (3)-3.5-7 mm, minutely scabrid above and on margins, ± golden to golden-brown, nerves 7-9, very weak; awn 0.2-2.5 mm, scabrid. Lemma 3-4.5 mm, ovate-lanceolate, 1-nerved, firm-hyaline, shallowly bifid, glabrous. Palea 3-4 mm. Anthers c. 2 mm. Gynoecium: ovary 0.5-0.75 mm; stigma-styles 7-7.5 mm. Caryopsis 1.5-1.75 mm; embryo 0.75 mm; pericarp detaching with 0.25-0.35 mm beak. Protogynous.
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