Loosely tufted herb. Leaves linear-ensiform, 30-90 cm long, 4-6 mm wide, flat, glabrous to puberulous; bases with thin, brown, scarious margins. Scape 30-80 cm long, glabrous, clasped at base by 1 reduced leaf. Spathes narrowly lanceolate, 6-8.5 cm long, veined, green, glabrous or puberulous on keel. Involucre 6-10 mm wide; inner bracts completely enclosed. Tube c. 5 cm long, sericeous. Sepals ovate to rhomboid, 2.5-3.5 cm long, 2-2.5 cm wide, with prominent midveins. Petals narrowly lanceolate. Filaments c. 7 mm long, completely connate. Ovary villous. Capsule cylindrical, 2.5-3.5 cm long. Seeds globose, c. 5 mm diam., pale brown; aril c. 2 mm long, in a large pit.