| Name | Ludwigia leptocarpa (Nuttall) H. Hara |
| Authorship | (Nuttall) H. Hara |
| Rank | Species |
| Placed in | Ludwigia de Candolle |
| Citation | 1953 J. Jap. Bot. 28(10): 292 |
| Holdings | 57 Specimens held in the Harvard University Herbaria identified as Ludwigia leptocarpa (Nuttall) H. Hara |
| Identification made in | [no date] (39), 1980 (14), 1983 (3), 1986 (1) |