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.

The culms are used as supports, and the plants are cultivated for ornament.

* About 800 m. S Hunan.