11. For example, one unique characteristic of " Indigofera " is that it demonstrates an open carpel not seen among many species. 12. The Maasai people of Kenya use parts of " Indigofera brevicalyx " and " I . swaziensis " as toothbrushes. 13. Examples of nitro compounds are rare in nature . 3-Nitropropionic acid found in fungi and plants ( " Indigofera " ). 14. "Indigofera " is a varied genus that has shown unique characteristics that make it an interesting candidate as a potential perennial crop. 15. The larvae of the first two instars feed on the leaves and later instars on the rootstock of " Indigofera baynei " ants. 16. One of his studies was on the fatal effects of " Indigofera cordifolia " on sheep that grazed them shortly after the rains. 17. The types of fruit produced by different species of " Indigofera " can also be divided into broad categories that again show great variation. 18. The plants found at the Trinil excavation site included grass ( poaceae ), ferns, ficus, and indigofera , which are typical of lowland rainforest. 19. -- Indigo ( Indigofera kirilow ) : A favorite, indigo grows 3 feet to 4 feet tall and has arching branches and flowers resembling those of wisteria. 20. In Central and South America, the important blue dyes were A�il ( " Indigofera suffruticosa " ) and Natal indigo ( " Indigofera arrecta " ).