Pseudosasa amabilis

Synonym: Arundinaria amabilis McClure, Lingnan Sci. J. 10, 1931: 6; Lingnan Sci. J. 13, 1934: 503.

Thai name: No known records.

Chinese name: 茶秆竹 (chá gǎn zhú).

English names: Tonkin Cane, Tonkin Bamboo.

Distribution: THAILAND: Plants of this species were introduced to northern Thailand in 2013; an earlier introduction is not known. — CHINA (South, East, Central): Guangdong, Guangxi, Fujian, Jiangxi, Hunan, at low altitude, often cultivated.

Description: "Culms 6–13 m, 2–6 cm in diam.; internodes olive-green, terete, 30–40(–50) cm, smooth, initially gray waxy; wall thick; cavity filled with lamellate or spongy pith; nodes weakly prominent. Branches (1–)3 per node, deflexed, secondary branchlets undeveloped. Culm sheaths gradually deciduous, brown, rigid, fragile when dry, densely setose, margins with cilia ca. 1.5 cm, apex truncate or raised on both sides; auricles absent; oral setae few, erect, ca. 1.5 cm, rigid, undulate; ligule arcuate, irregular, ciliate; blade erect, dark brown, narrowly triangular, scabrid, sharply pointed. Leaves 2 or 3 per ultimate branch; sheath glabrous, margins ciliolate; auricles minute; oral setae curved, 7–15 mm; ligule 1–2 mm, densely ciliolate; pseudopetiole ca. 5 mm; blade narrowly lanceolate, 16–35 × 1.6–3.5 cm, thick, glabrous, secondary veins 7–9-paired, one margin spinescent-serrulate, other margin obscure. … [flowers and seeds described]." — Flora of China, accessed 10 July 2020 [#1303].

Images: Line drawing in Flora of China [#1303].