Species: Krustjernaks (Potamogeton crispus)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Kvitblikkvannet | Nordland, Norway | 2 | 1 | 0 | 1993-09-02 | |
| Langavatnet | Vestland, Norway | 1 | 1 | 0 | 1989-08-31 | |
| Tveitevannet | Vestland, Norway | 1 | 1 | 0 | 1989-09-07 |