| Name | Polygonum hydropiperoides var. digitatum Fernald |
| Authorship | Fernald |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygonum hydropiperoides Michaux |
| GUID | urn:lsid:ipni.org:names:206238-2 |
| Citation | 1922 Rhodora 23(275): 260 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Polygonum hydropiperoides var. digitatum Fernald |
| Identification made in | [no date] (2), 2019 (2) |