| Name | Potamogeton oblongus Viviani |
| Authorship | Viviani |
| Rank | Species |
| Placed in | Potamogeton |
| Citation | 1802 Ann. Bot. (Genoa) 2: 102 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Potamogeton oblongus Viviani |
| Identification made in | [no date] (1) |