Stoloniferous, stolons c. 0.5 mm. diam. Culms 5–20 cm. × (0.3)–0.5-1 mm., glab.; basal bracts light brown or straw-coloured. Lvs 5–6–(8) per culm, < culms, 1–1.5 mm. wide, bright green, soft, the abaxial surface with 3–5 very pale green, raised veins, margins scabrid and tapering towards the narrow, triangular tip. Spikes 0.5–2 cm. × 3–4 mm., up to 1 cm. diam. at maturity, oblong, female fls 7–18, densely crowded, internodes 0.5–1.5 mm. long. Glumes = or > utricles, deciduous, subacute, membr., pale brown with broad green midrib. Utricles 4–5 × c. 1 mm., trigonous, elliptic-lanceolate, dark brown, shining, smooth except for a prominent lateral nerve, widely spreading when ripe, slightly contracted below to a stipe c. 1 mm. long and above to a beak c. 1.5 mm. long.