大叶筇竹 da ye qiong zhu

Culms 2–6 m, 1.5–2.1 cm in diam.; internodes 18–36 cm, flat above branches, initially white powdery or not, glabrous; wall 2.5–3.5 mm; nodes conspicuously raised into ring, readily disarticulating. Culm sheaths deciduous, triangular-ovate, thickly papery, glabrous or sparsely yellow-brown setose, margins ciliate; auricles absent; ligule truncate, 0.5–1 mm, ciliate; blade subulate or triangular-subulate, 3–9 mm, glabrous. Leaves (1 or)2 or 3(or 4) per ultimate branch; sheaths green, 4.5–7.2 cm, glabrous; auricles and oral setae absent; ligule purple-red, arched or truncate, 0.5–1 mm, glabrous; blade ovate-lanceolate, 11–26 × 1.6–5 cm, secondary veins 5–8 pairs, transverse veins distinct. Inflorescence and fruit unknown.

* Broad-leaved forests; 1400–2200 m. Sichuan.