Plant with stem to 50 cm high. Leaves broadly oblanceolate to lanceolate, 120-150 cm long, 7-16 cm wide, glossy green; margin toothless or with teeth in lower half only, the teeth antrorsely hooked, 7-8 mm long, 1.5-6 cm apart, reddish-brown; terminal spine flexible, 5 mm long, brown. Inflorescence 6-10 m high. Flowers 3.5-4 cm long, 4-4.5 cm wide; pedicels 6-10 mm long. Sepals and petals similar, 2.5-3.3 cm long, outer 11-14 mm wide, inner 14-18 mm wide. Filaments 10-11 mm long; anthers 4-5 mm long. Ovary 5-6 mm long; style 10-11 mm long; stigma 1 mm long. Fruit not seen. Bulbils present.
It is like an Agave. It is a herb that keeps growing from year to year. It grows 1.5-6 m high. Some forms have prickles and some do not. The leaves are sword shaped. They are green and in rings. The flowers are on long stalks. The flowers are drooping and bell shaped. They are white. Plants flower only once then die. The bruised leaves have a bad smell.