GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Bambusa jacobsii

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; zigzag; erect at the tip; 1000–2500 cm long; 55–100 mm diam.; woody. Culm-internodes terete; hollow; 28–33 cm long; distally glabrous, or pilose. Lateral branches dendroid. Buds or branches absent from lower quarter of culm. Branch complement several. Culm-sheaths persistent; 22.6 cm long; 1 times as long as wide; hispid; with dark brown hairs, or black hairs; convex at apex; auriculate; with 6–9 mm high auricles; setose on shoulders; shoulders with 14 mm long hairs. Culm-sheath ligule 5 mm high; dentate. Culm-sheath blade triangular; erect; 9.5 cm long; 5.9 mm wide; pubescent. Leaves cauline. Leaf-sheaths pilose; hairs white, or tawny. Leaf-sheath oral hairs scanty; 6–8 mm long. Leaf-sheath auricles falcate; 2 mm long. Ligule an eciliate membrane; 2 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 21.6–34 cm long; 30–45 mm wide. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Flowering specimens unknown.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Bambuseae. Widjaja 2002.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.