Woody bamboo with erect culms to 15m arching above and sometimes scandent in trees, triangular culm leaves to 650mm long, culm-sheaths to 455mm long,pubescent above, pubescent or scabrous beneath, culm leaf blades to 210mm long. Foliage leaf sheaths glabrous, leaf blades to 265mm x 7mm, glabrous above & scabrid beneath. Synflorescence a panicle to 190mm long subtended by a bract to 2mm long, spikelets to 11mm long, 2 glumes to 0.7mm long, 2 to glumes to 6.2mm long, triangular lemma to 7.9mm long. Reddish-brown fruit to 4.8mm long