Oreobambos

Tall woody bamboos. Leaf blade lanceolate to oblong-lanceolate, usually glabrous, finally disarticulating from sheath. Inflorescence narrow, slender, large, composed of clusters of spikelets on opposite sides of its branches; each cluster borne in axil of a deciduous sheath which is usually without a lamina. Spikelets sessile, 2-flowered, terete or somewhat laterally compressed, muticous subtended by a pseudo-involucre of broad coriaceous bracts; florets both bisexual; rachilla disarticulating beneath upper glume, produced as a fine bristle beyond upper floret; lower glume absent; upper glume 11