A member of the Passifloraceae, or Passionflower family, this plant is quite rare in collections. It's native habitat ranges from Somalia, eastern Ethiopia and north-eastern Kenya, and prefers a well drained soil and lots of sun. The stem can grow up to 12 inches in diameter while the entire tree can top 7 feet in the wild. The flowers are cream colored.

A rare variegated form of the species. The caudex is variegated with yellow. 

Not to be confused with Adenium, a completely different genus. Actually succulent forms of the Passifloraceae or Passion Flower family, many Adenias form thick stems which endear them to caudiciform plant lovers. However, when young they little resemble the future finished product. Typical young venenata are tall and resemble an upside-down elongated carrot. The leaves are accompanied by thread-like tendrils which vine around any available object. The caudex thickens with age and can reach 6 feet in very old plants and the vine can go on for 30 feet or more, but can be trimmed to keep it manageable. Leaves are stellate and the flowers are tiny, green and dioecious. Native to central and eastern Africa.