| Name | Polygonum hydropiperoides var. opelousanum (Riddell) W. Stone |
| Authorship | (Riddell) W. Stone |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Polygonum hydropiperoides Michaux |
| GUID | urn:lsid:ipni.org:names:1180024-2 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polygonum hydropiperoides var. opelousanum (Riddell) W. Stone |
| Identification made in | [no date] (1), 1919 (1) |
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