| Name | Ludwigia natans var. rotundata (Grisebach) Fernald & Griscom |
| Authorship | (Grisebach) Fernald & Griscom |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Ludwigia natans Elliott |
| GUID | urn:lsid:ipni.org:names:1156052-2 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Ludwigia natans var. rotundata (Grisebach) Fernald & Griscom |
| Identification made in | [no date] (2), 1942 (2) |
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