| Name | Potamogeton pusillus var. tenuissimus Mertens & Koch |
| Authorship | Mertens & W. D. J. Koch |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Potamogeton pusillus Linnaeus |
| GUID | urn:lsid:ipni.org:names:1037659-2 |
| Holdings | 430 Specimens held in the Harvard University Herbaria identified as Potamogeton pusillus var. tenuissimus Mertens & Koch |
| Identification made in | [no date] (424), 1972 (6) |
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