Acaulescent herb; rhizome subterranean, 5–9 cm long, 2–3 cm in diameter. Leaves solitary, erect, rigid, cylindric, (0.8–)1.5–2(–3) m long, 2–3 cm thick at the middle, slightly rough, slightly tapering upwards to apex, narrowing to a stout acute whitish hardly prickly point; juvenile with a concave channel 0.4–0.6 cm wide, 0.2–0.4 cm deep on upper surface and almost closed at leaf apex; 4–6 longitudinal impressed lines on the sides and back which deepen into furrows with age, dull green or bluish green, often with a brownish tint and entirely greyish green when mature, slightly subglaucous especially when young, and then marked with numerous closely placed transverse pale green bands which disappear with age; margin in juveniles brownish red to grey-green with a whitish grey membrane on the outer side, the brownish grey margin disappear with age; basal scaly leaves flat, very reduced, ensheathing the solitary cylindrical leaf, 8–10, 6.5–10(–13)≈2.5–3.5 cm, membranous, subulate tip less than 0.1 cm long, very evident parallel veins, translucent membranous grey-white margins (brownish white on live material); 7 back grooves, 3–4 lines in the channel. Inflorescence lateral, emerges beside the leaf, crowded corymbose-capitate, 8–10 cm long, open crown diameter up to 12–19 cm; flowers appear solitary above, erect; bracteoles 0.4–0.8 cm long, at base of cluster or each flower; base of cluster 0.3 cm thick; pedicels 0.6–0.9 cm long, very loosely jointed at base. Flower white sometimes tinged with violet, perianth 2.8–3.5 cm long, 0.2–0.3 cm wide; tube 1.2–1.6 cm long, lobes 0.8–0.9(–1.3) cm long; stamens 1.2–1.4 cm, anthers 0.3 cm; style 2.4–2.6 cm long. Fruit a globose berry, 1.3–1.5 cm diameter; seeds 1≈0.7 cm.