宁南方竹 ning nan fang zhu

Chimonobambusa yunnanensis Hsueh & W. P. Zhang.

Culms erect, (6–)10–14 m, 2–3 cm in diam.; internodes terete or 4-angled, ca. 20 cm, initially adnate-setose, becoming verrucose and rough; wall 3–4 mm; supra-nodal ridges level or slightly raised at branching nodes; sheath scar purple-brown pubescent; intranode with reflexed root thorns. Branches 3 per node. Culm sheaths deciduous, shorter than internodes; thickly papery, yellow-brown setose, longitudinal veins distinct, margins yellow-brown ciliate; ligule arcuate, ca. 0.5 mm, ciliate; blade subulate, 3–6 × ca. 3 mm. Leaves 3 per ultimate branch; sheath smooth; oral setae several, white, 4–5 mm; ligule ca. 1 mm; blade narrowly lanceolate, 20–23 × 1.5–2 cm, secondary veins 4- or 5-paired, transverse veins distinct. Inflorescence unknown.

* Broad-leaved forests; 1600–2200 m. SW Sichuan, Yunnan.