Culms 3–6 m, 2–4 cm in diam., apically pendulous; internodes 30–60 cm, initially with bulbous-based hispid hairs, papillate in age; wall 2–3 mm thick; nodes flat; sheath scar with a densely brown hirsute ring, distal to a white powdery ring. Branches many, subequal. Culm sheaths deciduous, asymmetrical, leathery, initially with brown tuberculate hairs, apex concave; auricles minute; oral setae 3–5 mm; ligule ca. 1 mm, serrulate; blade erect, base 1/4–1/3 as wide as sheath apex, both surfaces glabrous. Leaf sheaths weakly hispid; auricles minute; oral setae 8–12 mm; blade narrowly lanceolate, 8–19 × 1–1.5 cm. Inflorescence unknown.
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