Perennial. Culms 1–3 m tall, 0.5–1 cm in diam., many-noded, glabrous or hairy below panicle. Leaf sheaths longer than internodes, mouth bearded; leaf blades linear-elliptic, 30–50 × 1.5–2(–4) cm, glabrous, abaxial surface glaucous, tapering to base and apex, apex acuminate; ligule 2.3–2.5 mm. Panicle elliptic or oblong in outline, nodding, 15–40 cm, golden brown, branched, axis glabrous or pilose; racemes 3–10 cm; rachis internodes 2.5–4 mm, ciliate with long silky hairs. Spikelets 4–6 mm; callus hairs slightly shorter to longer than spikelet, white or pale yellow; lower glume lanceolate to elliptic-oblong, cartilaginous, golden brown, glossy, thinner and paler near apex, back glabrous or sparsely to densely pilose below middle, upper margins ciliate, apex bidenticulate; lower lemma slightly shorter than glumes; upper lemma linear-oblong, margins ciliate, shortly 2-toothed, awned; awn 1.3–2.8 cm. Anthers 3, 2–3 mm. Fl. and fr. Aug–Oct. 2n = 30.
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