Anils are indigo-yielding shrubs that are native to India and other parts of Asia. They are a type of shrub belonging to the genus Indigofera, which is part of the Fabaceae family. Anils are known for their ability to produce a blue dye, which has been used for centuries in traditional Indian textiles. The shrubs are also used for medicinal purposes, as they contain compounds that have anti-inflammatory and antiseptic properties.