Intravaginal shoots absent. Lower bract 5–20 (–40) cm long, including a sheath 1.5–4 cm long. Inflorescence 5–20 × 3–7 (–10) cm, lax, usually broad but sometimes elongated by subdivision in two parts, rarely congested to a few clusters, with 50–1000 heads. Heads 2–6-flowered. Most flowers functionally unisexual, male smaller than female; female flowers with rudimentary filaments; male flowers with degenerating ovary and reduced stigmas. Tepals 2.5–3 (–4) mm long. Stamens 6, c. 2/3 as long as tepals; anthers 1.3–1.6 mm long, 3.5–6.5 times as long as filaments; style 0.4–0.75 mm long; stigmas 1.0–1.3 (–1.8) mm long. Capsule 2–2.5 (–3) mm long, equalling or exceeding tepals by up to 0.5 mm, trilocular with distinct placental wings centrally; mucro 0–0.3 mm; seeds usually 25–35. Seeds 0.7–0.8 mm long, or 0.8–0.9 mm long including appendages, 0.35–0.4 mm broad, 20–25-striate, with transverse striae inconspicuous, c. 20 per longitudinal field; appendages small, unequal.