Culms 3–7 m, 1–3 cm in diam.; internodes slightly 4-angled or terete at culm base, (8–)15–18(–25) cm, smooth, glabrous; wall 3–5 mm; nodes level or with slightly raised sheath scar at nodes without branches. Culm sheaths deciduous, initially green, becoming yellow-brown, papery or thickly papery; auricles absent; ligule ca. 1 mm; blade triangular or subulate, 5–11 mm, glabrous, articulate, readily deciduous. Leaves (1 or)2(–5) per ultimate branch; sheaths leathery; auricles absent; oral setae several, 3–7 mm; ligule truncate, ca. 1 mm; blade lanceolate, (5–)8–12 × (0.8–)1.3–2 cm, transverse veins distinct. Flowering branches leafless or terminally leafy on branchlet; 2–4 single pseudospikelet racemes grouped in loose fascicles, subtended by several, gradually enlarged bracts. Spikelets 2–3 × 0.4–0.5 cm; florets (3–)5–7. Glumes 1 or 2(or 3), 7–13 mm; rachilla articulate, internodes 3–5 mm, slightly white powdery; lemma 8–13 mm; palea 7–11 mm, apex obtuse or bifid. Anthers yellow, 5–6 mm. Ovary ovoid; style 1; stigmas 2. Fruit a nutlike caryopsis. New shoots May, fl. Mar, fr. May.
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A bamboo. It grows 3-7 m tall. The stems are 1-3 cm across. The internodes are slightly 4 angled. They are 15-18 cm long. The leaf blade is 8-12 cm long by 1-3 cm wide.
Hills, growing under broad-leaved forests or coniferous forests, sometimes forming pure bamboo forests; at elevations from 1,600-2,000 metres.
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It is a temperate plant. It grows in the hills between 1,600-2,000 m in in central China.
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