Perennial; stems 10-45 cm, decumbent, rooting at nodes. Leaves 4-8 mm wide; sheaths scarcely inflated; ligule 2-5 mm, obtuse. Inflorescence 2-6.5 × 0.4-0.5 cm, narrowly cylindrical. Spikelets 2-3.5 mm. Glumes obtuse, parallel and hyaline at apex, connate only at base, hairy on keel and veins. Lemma truncate; margins free; awn exserted. Anthers 3-4 times as long as wide, brown at maturity.