Dendrocalamus nhatrangensis

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 700–900 cm long; 25–35 mm diam.; woody. Culm-internodes terete. Lateral branches dendroid. Branch complement several. Leaf-sheaths hispid. Leaf-sheath oral hairs setose; 10 mm long. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 4–5 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades oblong; 15–18 cm long; 30–40 mm wide; chartaceous. Leaf-blade venation with 14–18 secondary veins. Leaf-blade margins scaberulous. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in globose clusters; 1.5–10 cm between clusters; pubescent on internodes; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between branches.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5–4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.

GLUMES Glumes two; persistent; shorter than spikelet. Lower glume ovate. Upper glume ovate; chartaceous; without keels.

FLORETS Fertile lemma ovate; 2.5–3.5 mm long; chartaceous; keeled. Lemma surface pilose. Lemma apex acute.

FLOWER Lodicules absent. Anthers 6. Stigmas 1.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Bambuseae. Nguyen 2002.

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