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Leaf-laminae 10-35 x 2·5-6 cm., lanceolate to oblong-lanceolate, very obscurely tessellate, usually glabrous, pale green or somewhat glaucous, apex acute to acuminate.
Culm-sheaths covered with appressed bristle-like hairs when young, fimbriate at the mouth, with a short subulate lamina.
Inflorescence very large, loose; clusters of spikelets 1·5-2 x 0·8-2·25 cm., up to twice their length apart.
Spikelets 12-15 mm. long, lanceolate to oblong-lanceolate in lateral view, brown, usually somewhat glossy.
Culms up to 20 m. tall, 5-10 cm. in diam., usually drooping or spreading, rarely erect, green, hollow.
Lemmas 10-13·5 mm. long, broadly ovate to elliptic-ovate, with the apex obtuse or subacute.
Bracts 8-14 mm. long, ovate-elliptic, keeled, dark-brown, ciliate along the keel.
A robust tree-like bamboo, growing in small dense patches or solitary clumps.
Leaf-sheaths glabrous at the mouth.
Superior glume 9-11 mm. long.
Paleas 8-12 mm. long.
