Perennial, tufted, intravaginal and a few short extravaginal shoots present. Culms erect or ascending, 20–40 cm tall, 1–2 mm in diam., soft. Ligule 1–2 mm, rounded or acuminate; leaf blades inrolled or flat, hard, 4–5 cm, 1–2 mm in diam., abaxial surface glabrous, grayish green, adaxial surface scabrid. Panicle very narrow, 10–20 cm, pale green; branches 1–3 cm, straight, scabrid, spiculate to base. Spikelets 5–7 mm, florets 5–7; glumes lanceolate, slightly keeled, upper keel scabrous, apex acuminate, lower glume 1.5–1.8 mm, 1-veined, upper glume 2–2.5 mm, 3-veined; lemmas 2.2–3.2 mm, base sparsely shortly hairy, midvein scabrid toward apex, apex acute; palea keels ciliate on lower part, scabrous on upper part; anthers 0.7–1.2 mm. Fl. Jun–Jul.
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