Species: Småtjernaks (Potamogeton berchtoldii)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Ledengstjern | Østfold, Norway | 1 | 1 | 0 | 1994-05-27 | |
| Storeidvatnet | Nordland, Norway | 1 | 1 | 0 | 1998-09-07 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 |
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