Views: 25,523 http://en.wikipedia.org/wiki/Nilbidraha Indigofera Indigofera tinctoria Indigofera suffruticosa Uses Several of them and especially Indigofera tinctoria and Indigofera suffruticosa are used to produce the dye indigo . The chemical aniline , from which many important dyes are derived, was first synthesized from I. suffruticosa ( syn. I. anil , whence the