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Adenia is a genus of succulent plants that are native to Africa and the Arabian Peninsula. These plants have a unique appearance, with a thick, woody stem and branches that are often covered in spines. The leaves of Adenia are typically large and can be either deciduous or evergreen depending on the species. Some Adenia species have small, inconspicuous flowers, while others have showy blooms that are popular with pollinators. Adenia plants are often used for medicinal purposes in traditional African medicine, and they are also grown as ornamentals in tropical and subtropical regions around the world. However, it's important to note that some species of Adenia are toxic and should not be ingested.