Leaves 1–2.3 cm long, 1-veined, glabrous; lamina linear-subulate, keeled, c. 0.5 mm wide. Cataphyll 1.5–3 mm long, acute, sometimes absent. Scape straight, 0.7–2.5 cm long. Spike erect, symmetric, broadly ovate, 3–6 mm long, 3–4 mm wide, remaining compact. Primary bracts 2, patent, unequal, with leaf-like apices, 3–10 mm long, glabrous, each enclosing 1–3 male flowers. Distal bracts 4–9, ovate, acuminate, 1.5–2.8 mm long, each enclosing 1 female flower; dorsally keeled with a median row of hairs; margins broad, ciliate near base. Secondary bract subtending stamen lanceolate-elliptic, 1–1.7 mm long. Anthers 0.6–0.7 mm long. Secondary bract subtending ovary ovate, ciliolate, 2 mm long. Seed 0.7–0.9 mm long.