| Name | Polygonum intermedium Nuttall ex S. Watson |
| Authorship | Nuttall ex S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygonum Linnaeus |
| GUID | urn:lsid:ipni.org:names:206260-2 |
| Citation | 1882 Proc. Amer. Acad. Arts 17: 378 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Polygonum intermedium Nuttall ex S. Watson |
| Identification made in | [no date] (3), 2009 (2) |
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