Scrambling rhizomatous perennial clump-forming bamboo with woody culms to 4m, tomentose and hairy or glabrous culm sheaths. White powdery leaf sheaths also tomentose and sometimes brown-hairy, leaves to 350mm x 60mm nearly glabrous. Pseudo-spikelets to 30mm, spikelets with 5-9 fertile florets, 2 glumes to 10mm long, fertile lemma 13mm long, 3 lodicules 1mm long.