Perennial. Stems weak, ascending, 4-angled, glabrous, 15–60–(100) cm long. Lvs green, sessile, connate in pairs, narrow-oblanceolate to narrow-lanceolate below, narrow-lanceolate or becoming linear-lanceolate above, tapering gradually to acute apex and sparsely ciliate or glabrous base, (10)–15–30–(50) × 3–5–(8) mm; margin flat; marginal vein obscure or 0. Infl. a terminal dichasium, lax, (10)–20–60-flowered. Bracts ovate-acuminate to subulate, keeled, 4–7 × 1–3 mm; margins scarious, ciliate. Pedicels slender, patent, glabrous, 10–30–(50) mm long. Sepals narrow-triangular, acute, 3-veined, 4–7 mm long; margins scarious, ciliate. Petals 4–9 mm long, c. = or slightly > sepals. Stamens 10 or fewer. Capsule narrow-ovoid, = or > calyx. Seeds dull brown, c. 1 mm long; papillae low, elongate.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Flowering: Nov.–Apr.; Fruiting: (Nov.)–Dec.–Apr.