Species: Rusttjernaks (Potamogeton alpinus)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bergemsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-10-11 | |
| Litjvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2004-08-14 | |
| Opsangervatnet | Vestland, Norway | 2 | 1 | 0 | 1993-06-09 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 |