| Lennea brunnescens Standl., 1922 |
| Lennea melanocarpa (Schltdl.) Vatke ex Harms, 1923 |
| Lennea modesta (Standl. & Steyerm.) Standl. & Steyerm., 1946 |
| Lennea robinioides Klotzsch, 1842 |
| Lennea viridiflora Seem., 1853 |
| Lennea viridiflora var. novogaliciensis Lavin & M. Sousa, 1995 |
| Lennea viridiflora var. viridiflora Seem., 1853 |
| Lens Mill., 1754 |
| Lens culinaris Medik., 1787 |
| Lens esculenta Moench, 1794 |
| Lens lens (L.) Huth, 1893 |
| Leptoglottis DC., 1827 |
| Leptoglottis nelsonii Britton & Rose, 1928 |
| Leptoglottis palmeri Britton & Rose, 1928 |
| Leptoglottis paucijuga Britton & Rose, 1928 |
| Leptoglottis potosina Britton & Rose, 1928 |
| Leptoglottis regiomontana Britton & Rose, 1928 |
| Leptoglottis subinermis (S. Watson) Britton & Rose, 1928 |
| Leptolobium Vogel, 1837 |
| Leptolobium panamense (Benth.) Sch. Rodr. & A.M.G. Azevedo, 2008 |