| Name | Polygonum emersum (Michaux) Britton |
| Authorship | (Michaux) Britton |
| Rank | Species |
| Placed in | Polygonum Linnaeus |
| Citation | 1889 Trans. New York Acad. Sci. 8: 73 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polygonum emersum (Michaux) Britton |
| Identification made in | [no date] (1) |
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