Perennial; caespitose. Culms erect, or geniculately ascending; 100-200 cm long. Lateral branches ample. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1.6-3 mm long; erose; truncate, or obtuse. Leaf-blades 7.5-12.5 cm long; 5-7(-10) mm wide. Leaf-blade surface scabrous; glabrous, or pilose; sparsely hairy.
Inflorescence composed of racemes. Racemes 2-3(-5); paired, or digitate; unilateral; 10-24 cm long. Central inflorescence axis 0-1.2 cm long. Rhachis narrowly winged; angular; scabrous on margins. Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels tip rectangular.
Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.25-1 mm long; 0.05-0.15 length of spikelet; membranous; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse, or acute. Upper glume elliptic; 3-4.5 mm long; 0.65-0.8 length of spikelet; membranous; without keels; 3 -veined. Upper glume surface pubescent. Upper glume apex acute.
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 9-11 -veined; glabrous; villous on margins; acute. Fertile lemma elliptic; 4.5-6 mm long; cartilaginous; much thinner on margins; light brown; without keel. Lemma margins flat; covering most of palea. Lemma apex acute. Palea cartilaginous.