Dense perennials, cushion-forming. Stems erect, branched, (6–) 8–12 cm long; base covered with old sheaths; distal part with leaves usually not longer than 2–5 cm. Leaves imperfectly distichous; sheaths 1.2–1.5 cm long; auricles broad, obtuse, ±membranous; blades erecto-patent, rigid, canaliculate at base, cylindrical and gradually narrowing into pungent tip, 10–15 (–20) mm long, 0.7–1.2 mm wide. Bracteoles membranous-scarious, ovate, ±obtuse, unequal, 3.0–4.5 mm long. Flowers all unisexual. Staminate flowers on pedicels 1.2–2.0 cm; tepals scarious-membranous, with base stramineous to subcoriaceous; outer tepals 6.5–7.0 mm long; inner tepals 7–8 mm long; stamens 6; anthers 4.0–4.5 (–5.5) mm long, mucronulate, with mucro c. 0.3 mm long; filaments 0.5 mm long. Pistillate flowers on pedicels 5–7 (–15) mm long, slightly smaller than male; tepals 6.5–7.0 mm long, more broadly lanceolate; ovary turbinate; style c. 3 mm long; stigmas not exserted or slightly so, 1.0–2.5 mm long. Capsule unilocular, ellipsoid to oblong-obovoid, rounded at the apex, 4.0–5.0 mm long. Seed ellipsoidal, c. 0.8–1.0 mm long.