Genus: Skogsivaksslekta (Scirpus)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Ertsmyran 1 | Agder, Norway | 2 | 1 | 0 | 2010-06-11 | |
| Ertsmyran 2 | Agder, Norway | 1 | 1 | 0 | 2010-06-11 | |
| Frøylandsvatnet | Rogaland, Norway | 1 | 1 | 0 | 1991-09-11 | |
| Gåstjønna | Nordland, Norway | 1 | 1 | 0 | 1989-09-12 | |
| Harestuvannet | Akershus, Norway | 1 | 1 | 0 | 1990-09-04 | |
| Helsetvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2008-05-28 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 3 | 3 | 0 | 1989-09-06 | |
| Koltjønna | Trøndelag, Norway | 2 | 2 | 0 | 1992-08-27 | |
| Lisselva | Trøndelag, Norway | 2 | 1 | 0 | 1999-09-13 | |
| Maltjern | Akershus, Norway | 1 | 1 | 0 | 1992-06-23 | |
| Molbekktjernet | Østfold, Norway | 1 | 1 | 0 | 1989-09-04 | |
| Nes Verk rundt | Agder, Norway | 1 | 1 | 0 | 2024-05-27 | |
| Nitelva ved Smedstusvingen | Akershus, Norway | 1 | 1 | 0 | 2013-06-06 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Semsvannet | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Stavsjø | Innlandet, Norway | 2 | 1 | 0 | 1989-09-05 | |
| Storvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2004-08-14 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 |
Sustain.no is provided by the Norwegian Centre for Science Education