Culms 2–5 m, 0.5–1.5 cm in diam.; internodes 30–50 cm, initially white powdery, with stiff, brown or pale hairs. Branches 0.5–3 m. Culm sheaths shortly tomentose, mixed with longer, stiff, dull brown hairs; auricles broadly falcate, one usually covered by base of blade; ligule entire; oral setae 1.5–2 mm; blade oblique, cordate to narrowly oblique-cordate, amplexicaul. Leaf sheaths slightly hairy and stiffly dull brown hairy; auricles ascending, broadly ovate, usually swollen on one side; oral setae ca. 6 mm; ligule entire; blade usually 25–40 × 4.5–8 cm, glaucous, abaxially pubescent. Inflorescence unknown.
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