Vernonia is a genus of flowering plants in the family Asteraceae, commonly known as the aster or daisy family. It includes over 100 species, primarily found in tropical and subtropical regions. These plants are characterized by their vibrant purple flowers and are often used in gardens for ornamental purposes. Many species of Vernonia are also valued for their medicinal properties and traditional uses. Some are used in herbal remedies, while others serve as important sources of food and forage for livestock. The plants thrive in various habitats, including grasslands and open woodlands.