| Name | Polygonum setaceum var. tonsum Fernald |
| Authorship | Fernald |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygonum setaceum Baldwin |
| GUID | urn:lsid:ipni.org:names:206417-2 |
| Citation | 1938 Rhodora 40: 414 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polygonum setaceum var. tonsum Fernald |
| Identification made in | [no date] (1), 1987 (1) |
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