Bambusa sesquiflora

Synonym: Lingnania sesquiflora McClure, J. Arnold Arbor. 23, 1942: 99.

Thai names: No known records.

Distribution: THAILAND (North): Chiang Mai Province: Doi Suthep; cf. S. Dransfield, 1994: p. 2 [#1229]. — VIETNAM (North): "Tonkin".

Culm size: Height 6 m, diameter 4? cm.

Description: "… Rhizomes short; pachymorph. Culms scandent; 600 cm long; 40–100 mm diam.; woody; without nodal roots. Culm-internodes terete; thin-walled; distally glabrous. Lateral branches dendroid. Branch complement many; with 1 branch dominant. Culm-sheaths deciduous. Leaves cauline. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking, or setose; 5–10 mm long. Leaf-sheath auricles absent, or falcate. Ligule a ciliolate membrane; 1.5 mm long. Collar with external ligule. Leaf-blade base broadly rounded; with a brief petiole-like connection to sheath. Leaf-blades oblong; 12–28 cm long; 25–54 mm wide. Leaf-blade venation without cross veins, or with obscure cross veins. Leaf-blade surface pilose; sparsely hairy; hairy abaxially. Leaf-blade apex attenuate. …" — Kew GrassBase [#1335].

Images: Photos of the type specimen from Tonkin at Kew Herbarium 1, 2 (leaves, flowers) [#1333].

Characteristics: Tufted bamboo; culms scandent.

Comments: (1) Flowers known. — (2) In Thailand, only collected twice on Doi Suthep in evergreen forest at 1,300 m altitude by A. F. G. Kerr in 1916 and 1922 (records from Kew Herbarium); no further records are known.