The types of fruit produced by different species of Indigofera can also be divided into broad categories that again show great variation.

For example, different flowering morphologies could be artificially selected for in varying directions in order to better fit in different environmental conditions and with different populations of other plants. This variety could have significant implications on its role in an actual perennial polyculture. In addition, it appears that the organ primordial is often formed at deeper layers than other eudicots. One example of its unique flowering morphology is an open carpel not often seen elsewhere. The unique characteristics it has displayed include potential for mixed smallholder systems with at least one other species and a resilience that allows for constant nitrogen uptake despite varying conditions. Some examples of this diversity include differences in pericarp thickness, fruit type, and flowering morphology. Specifically, there is diverse variation among species with a number of unique characteristics. Indigofera is a varied genus that has shown unique characteristics making it an interesting candidate as a potential perennial crop. The fruit is a legume pod of varying size and shape. Racemes of flowers grow in the leaf axils, in hues of red, but there are a few white- and yellow-flowered species. Species of Indigofera are mostly shrubs, though some are small trees or herbaceous perennials or annuals. 4 Species names with uncertain taxonomic status.

Indigo plant