| Name | Polygonum mexicanum Small |
| Authorship | Small |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygonum Linnaeus |
| Citation | 1892 Bull. Torrey Bot. Club 19: 356 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Polygonum mexicanum Small |
| Identification made in | [no date] (5), 1922 (1), 2011 (1) |
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