A lily. It grows 1 m high. It forms tufts on slender thick stems. The leaves are simple and they have teeth on the edge towards the tip. They are 11-30 cm long and 1-3 cm wide. There is a sheath at the base and it is folded. The flowers are in a branched arrangement at the tip of the plant. The flowers have 6 tepals that are purple, blue or white. They are 4-5 mm long. The fruit is a berry. It can be blue or purple and is 4-7 mm long. The seeds are dark brown and 4 mm long.