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 stenoaurita

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; inclined at the tip; 1000 cm long; 70 mm diam.; woody; without nodal roots. Culm-internodes terete; with small lumen; distally glabrous. Lateral branches dendroid. Culm-sheaths deciduous; glabrous, or pubescent; with appressed hairs; with tawny hairs; truncate at apex; auriculate. Culm-sheath ligule 3 mm high; dentate. Culm-sheath blade lanceolate; deciduous; erect, or reflexed; acuminate. Leaves cauline; 7–14 per branch. Leaf-sheaths 6–8 cm long. Leaf-sheath oral hairs lacking. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 13–25 cm long; 15–30 mm wide. Leaf-blade venation with 10–14 secondary veins. Leaf-blade surface glabrous. Leaf-blade apex attenuate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.

FERTILE SPIKELETS Spikelets comprising 6 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 20–25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.

GLUMES Glumes several; comprising 1–2 gemmiferous bracts; 1–2 empty glumes. Lower glume ovate. Lower glume margins ciliate. Lower glume apex acute. Upper glume ovate. Upper glume margins ciliate. Upper glume apex acute.

FLORETS Fertile lemma ovate; 10–12.5 mm long; without keel. Lemma margins ciliolate. Lemma apex acute. Palea 1 length of lemma. Palea keels ciliolate. Palea surface puberulous; hairy on back and on margins. Palea apex emarginate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3; 3.5 mm long; membranous; veined; ciliate. Anthers 6; 8–10 mm long; purple; anther tip penicillate. Stigmas 3. Ovary pubescent on apex.

DISTRIBUTION Asia-temperate: China.

NOTES Bambuseae. Lin 2002.

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