Hibiscus,?a plant with colorful flowers, has been used for centuries for decorative and medicinal purposes. People have used it to make extracts, teas, and supplements. In traditional medicine, people use hibiscus preparations to treat ailments such as liver problems and high blood pressure Hibiscus is a genus of flowering plants in the mallow family, Malvaceae. The genus is quite large, comprising several hundred species that are native to warm temperate, subtropical and tropical regions throughout the world.