Herb with subterranean rhizome 1.5–1.8 cm in diameter. Leaves erect, 1–2 per plant, cylindrical from base to apex, 44–64(–76)≈0.4–0.6 cm, slightly recurved at base then straight and inward recurved just before apex, smooth to slightly rough towards apex, spine 0.3–0.4 cm long, brownish red at base, grey-greenish towards the tip, sharp but hardly piercing, horny; no channel, grooves numerous formed on drying; basal scaly leaves 2–3, 2.4–4.3≈1.2–1.4 cm, acute, membranous. Inflorescence terminal, corymbose-capitate, 11–13.5 cm long; axis 0.4–0.6 cm in diameter; one flower per bract, ensheathed in the bracts, no evident clusters, lower flowers seem to be sterile; lower inflorescence bracts 5–7, 0.6–2.5 cm apart, 0.9–1.3 cm long, membranous, acute; bracteoles densely together, 1.2–1.6≈0.4–0.6 cm, acute, membranous. Flower perianth white-pink or greyish green, 3.5–4.2 cm long, 0.2 cm wide; stamens at level of lobes, anthers 0.4 cm long; style exserted beyond the lobes. Fruit a globose berry, blackish when dry.
