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.

Dendrocalamus brandisii

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1900–3300 cm long; 130–200 mm diam.; woody; with aerial roots from the nodes. Culm-internodes terete; with small lumen; 30–38 cm long; grey. Lateral branches dendroid. Buds or branches present on lower quarter of culm. Culm-sheaths 40–60 cm long; 2 times as long as wide; coriaceous; pubescent; with white hairs; concave at apex; auriculate. Culm-sheath ligule 10–20 mm high; lacerate. Culm-sheath blade lanceolate; reflexed; 15–46 cm long; 80–130 mm wide; pubescent. Leaf-sheaths striately veined; pubescent. Leaf-sheath oral hairs scanty; deciduous. Ligule a ciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate, or oblong; 20–30 cm long; 25–50 mm wide. Leaf-blade venation with 10–12 secondary veins. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in globose clusters; 1–1.5 cm long; dense; 2.5–4 cm between clusters; 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 2–4 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 5–7.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.

GLUMES Glumes several; 1–2 empty glumes; persistent; similar; shorter than spikelet. Upper glume ovate; chartaceous; without keels. Upper glume apex acuminate; mucronate.

FLORETS Fertile lemma ovate; 4–5 mm long; chartaceous; without keel. Lemma surface puberulous; hairy above. Lemma margins ciliate. Lemma apex acute. Palea chartaceous; 3 -veined; 2-keeled but the uppermost without keels. Palea keels ciliate.

FLOWER Lodicules absent, or 1, or 2; veined; ciliate. Anthers 6; yellow; anther tip apiculate, or penicillate. Filaments united in a tube. Stigmas 1–2; plumose. Ovary umbonate; pubescent on apex.

FRUIT Caryopsis with adherent pericarp; ovoid; 2.5–4 mm long.

DISTRIBUTION Asia-temperate: China. Asia-tropical: Indo-China.

NOTES Bambuseae. Gamble 1996.

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