笔竹 bi zhu

Culms ca. 4 m, ca. 1 cm in diam.; internodes striate, terete, 10–15 cm, basally slightly flattened above branches, glaucous, pith spongy; nodes weakly prominent; intranode ca. 6 mm; sheath base persistent, glaucous at nodes, dark brown when old. Culm sheaths late deciduous, light brown, sparsely spotted, leathery, sparsely setose and pubescent, margins densely ciliate; auricles brown, circular to elliptic, small; oral setae radiate, curved, 5–10 mm; ligule arcuate, ca. 1.5 mm, scabrid, ciliolate; blade triangular-lanceolate, base slightly constricted, 2/3–3/4 as wide as sheath apex, margin serrulate, apex acuminate. Leaves (2–)4 or 5(–7) per ultimate branch; sheath setose, glaucous, margins ciliolate; auricles absent; oral setae 7–10; ligule very short, slightly scabrous; blade oblong-lanceolate, 8–30 × 2–3.3 cm, abaxially partially densely hairy, secondary veins (5–)7–10-paired, base broadly cuneate, margins serrulate, apex acute. Inflorescence unknown. New shoots May.

* Plains. Zhejiang (Hangzhou).

This species is possibly a synonym of Pseudosasa hindsii.