Species: Skogsnelle (Equisetum sylvaticum)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Arboret | Rogaland, Norway | 1 | 1 | 0 | 2019-08-26 | |
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-08-28 | |
| Bakketun | Innlandet, Norway | 7 | 1 | 0 | 2019-05-02 | |
| Bildøy | Vestland, Norway | 6 | 1 | 0 | 2005-08-29 | |
| Blokkhaugen skole | Vestland, Norway | 1 | 1 | 0 | 2009-05-28 | |
| Fløyta | Akershus, Norway | 1 | 1 | 0 | 1992-06-12 | |
| Fonnes | Vestland, Norway | 1 | 1 | 0 | 2018-05-11 | |
| Halsa-Holandsfjorden | Nordland, Norway | 1 | 1 | 0 | 2011-05-16 | |
| Hannoluohkka | Finnmark, Norway | 1 | 1 | 1 | 2014-07-25 | |
| Hjellestad skole | Vestland, Norway | 1 | 1 | 0 | 2007-05-10 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Hustoft gnr. 150/4 | Rogaland, Norway | 1 | 1 | 0 | 2023-05-07 | |
| Kjeldevatnet | Vestland, Norway | 2 | 1 | 0 | 2008-05-22 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1990-09-12 | |
| Mjølfjell | Vestland, Norway | 1 | 1 | 1 | 2016-08-26 | |
| Oasen skole Birkelid AS | Agder, Norway | 1 | 1 | 1 | 2021-09-03 | |
| Renslotunet | Buskerud, Norway | 4 | 1 | 0 | 2010-05-28 | |
| Semsvannet | Akershus, Norway | 1 | 1 | 0 | 1994-05-18 | |
| Sjøholt | Møre og Romsdal, Norway | 1 | 1 | 0 | 2015-05-14 | |
| Skranevatnet | Vestland, Norway | 3 | 1 | 0 | 2014-05-22 | |
| Søreide | Vestland, Norway | 2 | 1 | 0 | 2013-06-13 | |
| Vassetsætra | Møre og Romsdal, Norway | 2 | 1 | 0 | 2009-09-04 | |
| Vikeelva | Møre og Romsdal, Norway | 1 | 1 | 0 | 2015-06-10 | |