伞把竹 san ba zhu

Rhizome neck 5–10 cm, 1.8–2.5 cm in diam. Culms to 4 m, 1.5–2.5 cm in diam.; internodes terete, 15–17(–20) cm, initially slightly white powdery, longitudinal ribs absent; wall 2.5–5 mm thick; nodes with level or prominent supra-nodal ridge at branching nodes, slightly white powdery initially; sheath scar prominent, glabrous or initially slightly setose. Branches (3–)7–18 per node, deflexed. Culm sheaths persistent, narrowly triangular to rounded, longer than internodes, leathery, sometimes slightly white powdery and sparsely yellow-brown setose, shoulders with steep triangular projections, longitudinal ribs conspicuous; auricles and oral setae absent; ligule irregular, steeply arcuate, glabrous; blade erect or reflexed, narrowly triangular to linear-lanceolate, glabrous, level. Leaves 1 or 2 per ultimate branch; sheath glabrous; auricles and oral setae absent; ligule truncate, glabrous; blade narrowly lanceolate, 4–10 × 0.5–1 cm, secondary veins 2- or 3-paired, transverse veins indistinct, base broadly cuneate, margins serrulate. Inflorescence unknown. New shoots Aug.

* 2700–3700 m. NE Yunnan.

The shoots are edible, and the culms are used for making furniture.