This species occurs in South Africa.
The Succulentum is a huge underground caudex with long spiny branches being the only visible portion of the plant. The leaves are long, thin and dark green. The spines are long and occur in pairs near the new leaves. This species flowers are formed at the branch tips and are narrow shaped off white petals with a purple tint in the throat that extends out about half way down the narrow petals. Succulentum should be given full light and plenty of water during the warmer months. Flowers will appear in early spring and last for a about a month or longer in good conditions. Flowers mostly set in pairs or clusters.