油竹 you zhu

Lingnania surrecta Q. H. Dai, Acta Phytotax. Sin. 20: 213. 1982.

Culms 6–10 m, 3–6 cm in diam.; internodes 40–50 cm, sparsely glaucous-hairy; wall 6–10 mm thick; nodes flat; sheath scars with a densely strigose ring; branching from base. Branches many, central branches slightly dominant. Culm sheaths deciduous, thickly leathery, densely hispid, apex slightly concave; auricles narrowly ovate; oral setae recurved; ligule ca. 3–5 mm, fimbriate; blade erect, base ca. 1/3 as wide as sheath apex, adaxially strigose. Leaf sheaths glabrous; ligule fimbriate, ca. 1 mm; auricles deciduous, small; oral setae absent; blade lanceolate, 12–18 × 1–3 cm. Inflorescence unknown.

* River banks, near villages; 100–300 m. Guangxi.

The culms are very good for weaving.