Rootstock short, vertical. Leaves radical, tough, swordlike, to 2.5 m long, 10 cm wide. Scape erect, up to 5 m tall, with scattered short linear-lanceolate erect leaves sheathing at base. Flowers c. 10 cm long, red, arranged in a globular, compound raceme up to 0.7 m diam. Capsule c. 10 cm long.