Adenium is a genus of flowering plants in the Apocynum family, Apocynaceae, first described as a genus in 1819. It is native to Africa and to the Arabian Peninsula.
Adenium obesum is grown as a houseplant in temperate regions. Numerous hybrids have been developed. Adeniums are appreciated for their colorful flowers, but also for their unusual, thick caudices. They can be grown for many years in a pot and are commonly used for bonsai.