| Name | Polygonum pensylvanicum var. durum Stanford |
| Authorship | Stanford |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygonum pensylvanicum Linnaeus |
| GUID | urn:lsid:ipni.org:names:206332-2 |
| Citation | 1925 Rhodora 27: 178 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polygonum pensylvanicum var. durum Stanford |
| Identification made in | 1924 (1), 1971 (1) |
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