Long-creeping, stoloniferous grass, 40 cm high, forming extensive, tangled mats; stolons reddish. Leaves scattered along culm, rounded at base; margin rough; lamina 3–17 cm long, 5–15 mm wide; sheath rounded, with hairy margin. Racemes 2, appressed, appearing like a solitary raceme, 2.5–5.5 cm long, sturdy, straw-yellow; pedicels and rachis stout, 3-angled, glabrous; spikelets paired, appressed to rachis. Spikelets c. 7 mm long, plump, coriaceous, not awned. Glumes coriaceous; lower glume with 2 submarginal, membranous wings; upper glume with a winged keel, aristate. Lower floret c. 7 mm long; lemma and palea ± coriaceous. Upper floret c. 6 mm long; lemma hyaline, aristate; palea hyaline.