Culms to 7 m, to 4.5 cm in diam.; internodes 22–35(–44) cm, initially thinly white powdery, glabrous. Branches usually arising from mid-culm, central branch longer and thicker. Culm sheaths deciduous, sparsely brown strigose, apex truncate; auricles inconspicuous; oral setae absent; ligule truncate, ca. 1.5 mm, margin dentate and ciliolate; blade erect, narrowly triangular, base nearly as wide as or slightly narrower than sheath apex. Leaf blade oblong-lanceolate, 8–14 × 0.9–1.5 cm, both surfaces glabrous. Inflorescence unknown.
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