Culms 5–8 m, to 6 cm in diam.; internodes 20–35 cm, glaucous near nodes, slightly scabrid; wall ca. 3 mm thick, pith spongy; nodes strongly prominent. Culm sheaths shorter than internodes, sparsely setose, margins ciliate, purple; auricles and oral setae absent; ligule short, shortly hairy; blade lanceolate, scabrid. Leaves 3–5 per ultimate branch; sheath glabrous; auricles absent or weak, oral setae few or absent; blade lanceolate or oblong-lanceolate, 10–17 × 1.2–2.5 cm, glabrous, secondary veins 5-or 6-paired. Inflorescence unknown. New shoots Apr–May.
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