indigofera (genus)

Indigofera is a genus of flowering plants in the legume family, containing over 750 species globally. These plants typically feature compound leaves and vibrant, often violet-blue flowers. They are known for producing indigo dye, historically used for coloring textiles. Many Indigofera species grow as shrubs or small trees in tropical, subtropical, and temperate regions. Besides their cultural importance, some species also have medicinal uses or serve as forage for livestock. Their ability to fix nitrogen in the soil and their ornamental value make them significant in ecosystems and agriculture.