| Name | Polygonum hydropiperoides var. asperifolium Stanford |
| Authorship | Stanford |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygonum hydropiperoides Michaux |
| GUID | urn:lsid:ipni.org:names:206235-2 |
| Citation | 1926 Rhodora 28(326): 27 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polygonum hydropiperoides var. asperifolium Stanford |
| Identification made in | 1924 (1), 2019 (1) |