The wild tree grape is a slow-growing succulent with a huge swollen trunk (caudiciform). These plants occur in Namibia where they are exposed to very dry and hot conditions. Wild tree grapes have therefore evolved and adapted very well in order to survive. The presence of white, drooping, papery pieces of bark on the yellow green stems is very typical of this species. In summer this helps to reflect away the sunlight in order to keep the plant cool. The thick, fleshy stem and leaves act as water reservoirs in times of drought. A fully grown plant can measure up to 2 m.