| Name | Potamogeton turionifer f. tenuis Hagström |
| Authorship | Hagström |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Potamogeton turionifer Hagström |
| Citation | 1916 Kongl. Svenska Vetensk. Acad. Handl. 55(5): 91 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Potamogeton turionifer f. tenuis Hagström |
| Identification made in | [no date] (1) |