Perennial herb, geophyte, 0.9-2.5 m high; stems form large clumps; corm 35-40 mm in diam. Leaves linear, ± acute; radical leaves 550-1500 x 5-15 mm; reduced sheathing leaves 5. Flowering stem 1.1-2.7 m high. Bract white, sometimes with few brownish spots, 18-27 x 7-10 mm, elliptic-lanceolate, acute to acuminate. Inflorescence a raceme of terminal spikes, usually pendulous or suberect, with 6-11 branches. Perianth pink or rarely red, (20-)24-33 mm long; tube (5.0-)8.0-10.5 mm long; tepals 12-23 x 5-10 mm. Anthers (7-)8-10 mm long. Flowering time Oct-May.