Culms 7–10 m, to 8 cm in diam.; internodes 20–28 cm. Branches several, main mid-culm ones 3. Culm sheaths deciduous, shorter than internodes, leathery or thickly papery; auricles small; ligule 3–4 mm, serrulate; blade reflexed, 6–10 cm, adaxially setose. Leaf sheaths thinly white powdery, glabrous; ligule ca. 1 mm; serrulate; blade 16–20 × 1.5–2.5 cm. Pseudospikelet clusters 1–1.8 cm in diam. Spikelets 7–8 mm; fertile florets 2 or 3. Glumes 2, 4–4.5 mm, margins ciliate; lemma 5.5–7 mm, apex long mucronate; palea 5.5–7 mm. Anthers 3–4 mm. Style glabrous; stigma 1, about as long as style. Fruit unknown.
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