| Name | Potamogeton epihydrus subsp. nuttallii (Chamisso & Schlechtendal) Calder & R. L. Taylor |
| Authorship | (Chamisso & Schlechtendal) Calder & Roy L. Taylor |
| Rank | Subspecies |
| Placed in | Potamogeton epihydrus Rafinesque |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Potamogeton epihydrus subsp. nuttallii (Chamisso & Schlechtendal) Calder & R. L. Taylor |
| Identification made in | [no date] (1) |
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