| Lopezia smithii Rose, 1909 |
| Lopezia suffrutescens Munz, 1961 |
| Lopezia trichota Schltdl., 1838 |
| Lopezia violacea Rose, 1909 |
| Lopezieae Spach, 1835 |
| Ludwigia L., 1753 |
| Ludwigia adscendens (L.) H. Hara, 1953 |
| Ludwigia affinis (DC.) H. Hara, 1953 |
| Ludwigia bonariensis (Micheli) Hara, 1953 |
| Ludwigia clavellina M. Gómez, 1894 |
| Ludwigia decurrens Walter, 1788 |
| Ludwigia erecta (L.) Hara, 1953 |
| Ludwigia foliobracteolata (Munz) H. Hara, 1953 |
| Ludwigia helminthorrhiza (Mart.) H. Hara, 1953 |
| Ludwigia hexapetala (Hook. & Arn.) Zardini, H.Y. Gu & P.H. Raven, 1991 |
| Ludwigia hyssopifolia (G. Don) Exell, 1957 |
| Ludwigia inclinata (L. f.) M. Gómez, 1894 |
| Ludwigia leptocarpa (Nutt.) Hara, 1953 |
| Ludwigia linearis Walter, 1788 |
| Ludwigia linifolia Poir., 1814 |