Indigo leaves are native to the tropics and belong to the species of Genus Indigofera which is the find of most naturally occurring indigo dye.. Dyer's knotweed Polygonum tinctorium and woad Isatis tinctoria are also used to extract indigo in European countries.. True indigo Indigofera tinctoria is a shrub found in Southeastern Asia and is a commonly used commercial species of indigo in Asia having flowers ranging from red to purple.. Also known as Blue False Indigo Blue Wild Indigo Baptisia australis is a herbaceous perennial plant found in North America which was used to make blue dye by the Cherokee Indians.. We use Indigo leaves to make hair dye that is appreciated among the clients for its natural qualities..