薄壁箭竹 bao bi jian zhu

Fargesia aurita Hsueh & C. M. Hui (1998), not T. P. Yi (1985).

Rhizome neck 5.5–10.5 cm, 1.5–3 cm in diam. Culms 4–8(–10) m, 1–3 cm in diam.; internodes terete, 20–25(–40) cm or longer, initially often slightly white powdery, glabrous; wall 2–3 mm thick; supra-nodal ridge level or weakly prominent; sheath scar prominent, narrow, initially brown setose. Branches 8–11 per node. Culm sheaths persistent, narrowly triangularly rounded, equal to or longer than internodes, leathery, densely yellow to yellow-brown setose, longitudinal ribs prominent, margins apically ciliate; auricles absent; oral setae few, erect or slightly curved, yellow-brown, 2–8 mm; ligule truncate, 2–5 mm, margins sometimes ciliate; blade readily deciduous, reflexed, linear-lanceolate, adaxially slightly pilose proximally. Leaves 2–5 per ultimate branch; sheath initially white powdery apically, margins initially ciliate; auricles absent; oral setae few, erect, gray-yellow, 3–11 mm, undulate; ligule light green, truncate, ca. 1 mm, glabrous; blade lanceolate, 13–18(–20) × 1.3–2.3(–2.5) cm, usually rugose when dry, glabrous, secondary veins 4- or 5(or 6)-paired, transverse veins distinct, base cuneate, one margin spinescent-serrulate, other margin obscure, apex acuminate. Inflorescence unknown. New shoots Aug.

* 2400–3100 m. SW Yunnan.

The shoots are edible, and the culms are used for papermaking and weaving.