The evergreen leaves are dark green, linear, bayonet-shaped, 15-35 cm long and 7-15 mm broad at the base, tapering to a sharp point; they are borne in a dense spiral arrangement at the apex of the stems.
Flowers appear from February to late April, in panicles 30-55 cm tall and 30-38 cm broad, the individual flowers erect, 4-7 cm tall, with six creamy white to green tepals.