| Indigofera jaliscensis Rose, 1905 |
| Indigofera jamaicensis Spreng., 1826 |
| Indigofera laevis Rydb., 1923 |
| Indigofera lancifolia Rydb., 1923 |
| Indigofera langlassei Rydb., 1923 |
| Indigofera leptosepala Nutt., 1838 |
| Indigofera leptosepala var. angustata S. Watson, 1882 |
| Indigofera leptosepala var. brevipes S. Watson, 1882 |
| Indigofera lespedezioides Kunth, 1823 |
| Indigofera lindheimeriana Scheele, 1848 |
| Indigofera macilenta Standl., 1940 |
| Indigofera magallanesii Cruz Durán & M. Sousa, 2017 |
| Indigofera mariosousae Rzed.& R. Grether, 2018 |
| Indigofera matudae Lundell, 1938 |
| Indigofera mexicana Benth., 1848 |
| Indigofera microcarpa Desv., 1814 |
| Indigofera miniata Ortega, 1798 |
| Indigofera miniata var. leptosepala (Nutt. ex Torr. & A. Gray) B.L. Turner, 1956 |
| Indigofera mollicoma N.E. Br., 1932 |
| Indigofera montana Rose, 1905 |