Dendrocalamus nudus

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 800 cm long; 20 mm diam.; woody. Culm-internodes terete. Lateral branches dendroid. Leaf-sheaths glabrous on surface. Leaf-sheath auricles absent. Ligule an eciliate membrane. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 30 cm long; 40–50 mm wide. Leaf-blade midrib prominent beneath. Leaf-blade surface puberulous; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in globose clusters; 2 cm long; dense; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3 fertile florets; without rhachilla extension. Spikelets lanceolate, or ovate; laterally compressed; 9 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.

GLUMES Glumes one the lower absent or obscure; persistent; shorter than spikelet. Upper glume ovate.

FLORETS Fertile lemma ovate; 6–7 mm long; chartaceous; without keel. Lemma apex mucronate. Palea ovate; 5–6 mm long; chartaceous; 2-keeled but the uppermost without keels. Palea keels ciliolate. Palea apex obtuse.

FLOWER Lodicules absent. Anthers 6; 4 mm long; anther tip smooth. Filaments free. Stigmas 1; pubescent. Ovary umbonate; pubescent on apex.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Bambuseae. Lecomte 1996.

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