Equisetum arvense
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bakketun | Innlandet, Norway | 4 | 1 | 0 | 2017-04-30 | |
| Bjørkelangen | Akershus, Norway | 2 | 2 | 0 | 2023-05-30 | |
| Fløyta | Akershus, Norway | 1 | 1 | 0 | 1992-06-12 | |
| Halsa-Holandsfjorden | Nordland, Norway | 1 | 1 | 0 | 2011-05-12 | |
| Kjeldevatnet | Vestland, Norway | 2 | 1 | 0 | 2008-05-22 | |
| Kråkstad | Akershus, Norway | 1 | 1 | 0 | 2009-08-20 | |
| Nes Verk rundt | Agder, Norway | 8 | 1 | 0 | 2024-04-14 | |
| Renslotunet | Buskerud, Norway | 2 | 1 | 0 | 2010-05-28 | |
| Skranevatnet | Vestland, Norway | 2 | 1 | 0 | 2013-05-30 | |
| Storvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2004-08-14 | |
| Søreide | Vestland, Norway | 1 | 1 | 0 | 2013-06-13 | |
| Tylldalen | Innlandet, Norway | 1 | 1 | 0 | 2010-05-07 |