| Name | Ludwigia microcarpa Michaux |
| Authorship | Michaux |
| Rank | Species |
| Placed in | Ludwigia de Candolle |
| Citation | 1803 Fl. Bor.-Amer. [Michaux] 1: 88 |
| Holdings | 54 Specimens held in the Harvard University Herbaria identified as Ludwigia microcarpa Michaux |
| Identification made in | [no date] (42), 1981 (12) |