| Name | Polygonum majus Piper |
| Authorship | Piper |
| Rank | Species |
| Placed in | Polygonum Linnaeus |
| Citation | 1901 Fl. Palouse Reg. 63 |
| Holdings | 29 Specimens held in the Harvard University Herbaria identified as Polygonum majus Piper |
| Identification made in | [no date] (29) |
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