| Libidibia paraguariensis (D. Parodi) G.P. Lewis, 2008 |
| Libidibia sclerocarpa (Standl.) Britton & Rose, 1930 |
| Liebrechtsia De Wild., 1902 |
| Lipusa Alef., 1866 |
| Lipusa formosa (Kunth) Alef., 1866 |
| Lipusa multiflora Alef., 1866 |
| Lojaconoa Bobrov, 1967 |
| Lojaconoa microcephala (Pursh) Bobrov, 1967 |
| Lonchocarpus Kunth, 1824 |
| Lonchocarpus acuminatus (Schltdl.) M. Sousa, 1987 |
| Lonchocarpus affinis Pittier, 1903 |
| Lonchocarpus agyrotrichus Harms, 1824 |
| Lonchocarpus amerimnum DC., 1825 |
| Lonchocarpus andrieuxii M. Sousa, 1992 |
| Lonchocarpus angusticarpus M. Sousa, 2009 |
| Lonchocarpus apricus Lundell, 1939 |
| Lonchocarpus argyrotrichus Harms, 1921 |
| Lonchocarpus atropurpureus Benth., 1860 |
| Lonchocarpus balsensis M. Sousa & J.C. Soto, 1989 |
| Lonchocarpus barbatus M. Sousa, E. Martínez & Ramos, 2011 |