Equisetum
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Abbortjernet | Innlandet, Norway | 1 | 1 | 0 | 1989-08-22 | |
| Akersvannet | Vestfold, Norway | 2 | 1 | 0 | 1989-09-15 | |
| Almåselv | Vestland, Norway | 2 | 2 | 1 | 2015-08-31 | |
| Almåselv | Vestland, Norway | 1 | 1 | 0 | 2015-08-31 | |
| Arboret | Rogaland, Norway | 2 | 2 | 0 | 2019-08-26 | |
| Arboretet og Botanisk hage | Vestland, Norway | 1 | 1 | 2 | 2019-08-29 | |
| Arkavatnet | Rogaland, Norway | 2 | 2 | 0 | 1989-08-28 | |
| Bakketun | Innlandet, Norway | 15 | 3 | 0 | 2019-05-02 | |
| Bekk/ bekkmunning Haukvatnet | Trøndelag, Norway | 2 | 1 | 0 | 2015-06-05 | |
| Bekkevika | Vestfold, Norway | 1 | 1 | 0 | 2014-09-16 | |
| Bergemsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-10-11 | |
| Bergvikvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-18 | |
| Bildøy | Vestland, Norway | 6 | 1 | 0 | 2005-08-29 | |
| Bjørkelangen | Akershus, Norway | 2 | 2 | 0 | 2023-05-30 | |
| Blokkhaugen skole | Vestland, Norway | 1 | 1 | 0 | 2009-05-28 | |
| Bogstadvannet | Oslo, Norway | 2 | 1 | 0 | 1994-06-06 | |
| Burudvann | Akershus, Norway | 1 | 1 | 0 | 1991-09-12 | |
| Dælivannet | Akershus, Norway | 1 | 1 | 0 | 1989-08-04 | |
| Elgtjern | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-15 | |
| Engsbekken | Østfold, Norway | 1 | 1 | 0 | 2002-05-30 | |
| Fetvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-29 | |
| Finse forskningsstasjon - Jomfrunut | Vestland, Norway | 2 | 1 | 0 | 2014-07-16 | |
| Fløyta | Akershus, Norway | 4 | 3 | 0 | 1993-05-27 | |
| Folkestad | Telemark, Norway | 1 | 1 | 0 | 2014-04-06 | |
| Fonnes | Vestland, Norway | 1 | 1 | 0 | 2018-05-11 | |
| Frøylandsvatnet | Rogaland, Norway | 3 | 1 | 0 | 1992-09-16 | |
| Fæbydammen | Trøndelag, Norway | 2 | 1 | 0 | 2003-09-12 | |
| Gjerdsetvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2001-08-30 | |
| Gjerstadvannet | Agder, Norway | 1 | 1 | 0 | 2005-11-10 | |
| Glitredammen | Akershus, Norway | 4 | 1 | 0 | 2006-12-13 | |
| Granavatnet | Trøndelag, Norway | 3 | 1 | 0 | 1997-09-04 | |
| Grunningen | Innlandet, Norway | 1 | 1 | 0 | 2012-09-20 | |
| Gulelva | Møre og Romsdal, Norway | 1 | 1 | 0 | 1999-09-09 | |
| Gårdsdam - Hvam vgs. | Akershus, Norway | 1 | 1 | 0 | 2000-06-07 | |
| Gåstjønna | Nordland, Norway | 1 | 1 | 0 | 1989-09-12 | |
| Halsa-Holandsfjorden | Nordland, Norway | 2 | 2 | 0 | 2011-05-16 | |
| Hammervatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-10-08 | |
| Hannoluohkka | Finnmark, Norway | 1 | 1 | 1 | 2014-07-25 | |
| Harestuvannet | Akershus, Norway | 2 | 1 | 0 | 2004-09-01 | |
| Haukvatnet | Trøndelag, Norway | 2 | 1 | 0 | 1989-09-22 | |
| Haukvatnet | Trøndelag, Norway | 2 | 1 | 0 | 2015-06-05 | |
| Hauskjevatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Helsetvatnet | Møre og Romsdal, Norway | 7 | 1 | 0 | 2009-05-28 | |
| Hestsjøen | Trøndelag, Norway | 2 | 1 | 0 | 2004-09-23 | |
| Hjellestad skole | Vestland, Norway | 1 | 1 | 0 | 2007-05-10 | |
| Hjorteskogen | Vestland, Norway | 1 | 1 | 0 | 2012-09-23 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 3 | 3 | 0 | 1989-09-06 | |
| Hostadvatnet | Møre og Romsdal, Norway | 3 | 1 | 0 | 1993-06-16 | |
| Huldertjønna | Trøndelag, Norway | 1 | 1 | 0 | 2004-09-14 | |
| Hustoft gnr. 150/4 | Rogaland, Norway | 5 | 2 | 0 | 2024-05-10 |