Plant rhizomatous; rhizomes long, slender, covered by short, striate, glabrous or pubescent cataphylls. Culms slender, erect, 65–160 cm tall, solid, unbranched. Leaves cauline; leaf sheaths striate, glabrous; leaf blades linear, flat, 20–50 × 0.5–1.5 cm, glabrous, midrib prominent, base tapering, straight or rounded, margins scabrid, apex acuminate; ligule ca. 0.5 mm, fringed with 1–2 mm cilia. Panicle 7–30 cm; axis 5–15 cm, glabrous or pilose at base. Racemes 4–24, 5–20 cm; rachis internodes glabrous, nodes pilose or glabrous; lower pedicel 1–2.5 mm, upper pedicel 2–5 mm. Spikelets 4–6 mm, pilose, awnless; callus hairs 8–12 mm, exceeding the spikelet; glumes subequal, membranous, 4–6 mm, veins obscure, apex acuminate; lower glume densely pilose with long hairs on margins; upper glume shortly pilose at apex; lower lemma lanceolate, hyaline, ca. 3 mm, 0–1-veined, apex and margins puberulous; upper lemma similar to lower; upper palea a small, veinless, puberulous scale. Anthers 3, 2–2.5 mm. Caryopsis oblong.
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