Species: Amphibious Bistort (Persicaria amphibia)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Akersvannet | Vestfold, Norway | 2 | 1 | 0 | 1989-09-15 | |
| Gullerudtjern | Buskerud, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Harestuvannet | Akershus, Norway | 1 | 1 | 0 | 1990-09-04 | |
| Jarenvannet | Innlandet, Norway | 2 | 1 | 0 | 1990-08-28 | |
| Ljøgodttjern | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Nøklevann | Oslo, Norway | 2 | 1 | 0 | 1989-10-04 | |
| Reinsvolldammen | Innlandet, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Sagåsen | Innlandet, Norway | 1 | 1 | 0 | 2012-07-06 | |
| Skarvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Stavsjø | Innlandet, Norway | 2 | 1 | 0 | 1989-09-05 | |
| Ulfsbakktjønn | Vestfold, Norway | 2 | 1 | 0 | 1997-09-16 | |
| Vansjø | Østfold, Norway | 1 | 1 | 0 | 2017-07-09 | |
| Årungen | Akershus, Norway | 2 | 1 | 0 | 1991-09-16 | |