| Name | Potamogeton ×lithuanicus Gorski ex Ascherson & Graebner |
| Authorship | Gorski ex Ascherson & Graebner |
| Rank | Species |
| Placed in | Potamogeton |
| Citation | 1897 Syn. Mitteleur. Fl. [Ascherson & Graebner]. 1: 328 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Potamogeton ×lithuanicus Gorski ex Ascherson & Graebner |
| Identification made in | 2012 (1) |