Perennial, densely tufted. Culms obliquely ascending, 15–20 cm tall, 1–1.5 mm in diam. Leaf sheaths glabrous, uppermost enclosing base of panicle; ligule ca. 1 mm, truncate; leaf blades flat or conduplicate, 3–5 cm, (1–)2–3 mm wide, margins scabrid. Panicle narrow, 3–4 × ca. 3 cm; branches 2–4 per node, 1–2 cm, smooth. Spikelets 3–4 mm, florets 2 or 3; lower glume 0.6–1 mm, veinless or sometimes 1-veined, upper glume 1–1.5 mm, 1–3-veined; lemmas 2–2.5 mm, glabrous, margins ca. 0.3 mm wide, yellow, membranous, apex obtuse; palea keels smooth, apex 2-toothed and mucronate, mucros ca. 0.2 mm; anthers 1.2–1.5 mm. Fl. Jun–Jul.
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