Indigofera is a genus of flowering plants in the legume family, Fabaceae. It includes around 700 species, commonly known for their vibrant blue dye, indigo, which is derived from the leaves of certain species. These plants are typically found in tropical and subtropical regions around the world. Many species of Indigofera are used in traditional medicine and as forage for livestock. They are also important for soil health, as they can fix nitrogen, enriching the soil. Some species are cultivated for ornamental purposes due to their attractive flowers and foliage.