A South African species, synonym O. caudatum. Long fleshy dark green leaves grow from the heart, and a little later in time the flower stalks, up to sometimes more than a metre long, also appear with terminal dense flower clusters, consisting of many greenish white flowers of 1-1.5 cm size. Before wintering in frost-free conditions, if desired, all the leaves and flower stalks can be cut off at the leaf neck and kept fairly dry until spring.