Perennial. Culms 100-200 cm long; 10 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; 4-11.6 cm long; distally pruinose. Lateral branches dendroid; intravaginal. Bud complement 7-19. Branch complement several, or many; in a horizontal line; thinner than stem. Culm-sheaths persistent; 5-5.7 cm long. Culm-sheath ligule 1-2 mm high; dentate. Culm-sheath blade triangular; demarcated but persistent; erect; 2.3-3.9 cm long. Leaves 10-11 per branch. Ligule an eciliate membrane; 0.2-0.5 mm long; pubescent on abaxial surface; truncate. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.03 cm long. Leaf-blades lanceolate; 2.6-5.6 cm long; 4-5 mm wide; coriaceous; stiff. Leaf-blade venation without cross veins. Leaf-blade surface glabrous, or pilose.
Inflorescence a panicle; embraced at base by subtending leaf. Panicle spiciform; linear; 2-5 cm long. Primary panicle branches appressed; 0.5-1 cm long. Panicle axis angular; scabrous. Panicle branches angular; scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; 1-3 mm long; scabrous.
Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.2-0.4 mm long; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.2-0.4 mm long; 0.05 length of adjacent fertile lemma; membranous; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex acute.
Basal sterile florets barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 4.1-5.1 mm long; 0.66 length of fertile lemma; chartaceous; 1-3 -veined; without lateral veins, or distinctly veined; puberulous; attenuate. Lemma of upper sterile floret ovate; 4-5.5 mm long; chartaceous; pubescent; attenuate, or setaceously attenuate. Fertile lemma ovate; 6-8.3 mm long; coriaceous; without keel; 7 -veined. Lemma apex attenuate, or setaceously attenuate. Palea 5.8-8 mm long; 4 -veined.