Perennial. Culms scandent; pendulous at the tip; 700-900 cm long; woody. Culm-internodes terete; 10-13 cm long. Lateral branches dendroid. Branch complement many; in a clump; thinner than stem. Culm-sheaths persistent. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 0.5 mm long; truncate. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 4-8.5 cm long; 5-9 mm wide. Leaf-blade midrib prominent beneath. Leaf-blade venation with 6 secondary veins. Leaf-blade margins scaberulous. Leaf-blade apex attenuate.
Inflorescence a panicle; subtended by an inflated leaf-sheath; embraced at base by subtending leaf. Panicle open; linear; 5-8 cm long. Primary panicle branches appressed; 1-2 cm long. Panicle axis angular; scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-5 mm long.