| Name | Ludwigia grandiflora (Michaux) Greuter & Burdet |
| Authorship | (Michaux) Greuter & Burdet |
| Rank | Species |
| Placed in | Ludwigia de Candolle |
| Citation | 1987 Willdenowia 16(2): 448 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Ludwigia grandiflora (Michaux) Greuter & Burdet |
| Identification made in | [no date] (4), 1986 (6) |