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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Dendrocalamus multiflosculus
HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; erect at the tip, or nodding at the tip; 2000–2400 cm long; 120–170 mm diam.; woody. Culm-internodes terete; hollow; (15–)23–30(–39) cm long; distally pruinose, or pubescent. Lateral branches dendroid; arising from upper culm. Bud complement 1. Branch complement several; with 1 branch dominant. Culm-sheaths deciduous; coriaceous; pubescent; hairy below; with tawny hairs; glabrous on margins; convex at apex; without auricles. Culm-sheath ligule 4 mm high; dentate. Culm-sheath blade lanceolate; erect, or spreading; hispid; acuminate. Leaves (7–)8–10(–11) per branch. Leaf-sheaths pilose; hairs tawny. Leaf-sheath auricles absent. Ligule an eciliate membrane; 2 mm long; truncate. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole 0.6 cm long. Leaf-blades lanceolate; 36–43.6 cm long; (48–)70–92 mm wide. Leaf-blade venation with 26–28 secondary veins. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex acuminate.
INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in stellate clusters (of 5–7 spikelets); with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; with 1-keeled prophylls; leafless between clusters.
Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 9–10 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; (12–)18–25 mm long; 6–10 mm wide; falling entire. Rhachilla internodes suppressed between florets.
GLUMES Glumes several; 5–6 empty glumes; similar; shorter than spikelet. Upper glume ovate; 8.8–10.7 mm long; chartaceous; without keels. Upper glume margins ciliate.
FLORETS Fertile lemma ovate; 10.8–12.7 mm long; 10.5–13.9 mm wide; chartaceous; without keel. Lemma surface hispidulous. Lemma margins ciliolate. Lemma apex truncate, or obtuse. Palea lanceolate; 12.9–13.6 mm long; chartaceous; 10 -veined; 2-keeled but the uppermost without keels. Palea keels ciliate. Palea surface puberulous.
FLOWER Lodicules absent. Anthers 6; 8–9.2 mm long; yellow; anther tip penicillate. Filaments free. Stigmas 1; pubescent. Ovary pubescent on apex.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Asia-tropical: Indo-China.
NOTES Bambuseae. Nguyen & Xia 2014.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
