Artificial group: Vascular plant (Tracheophytes)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Ørstveit | Telemark, Norway | 5 | 3 | 0 | 2017-05-31 | |
| Ørvik-området | Telemark, Norway | 3 | 3 | 0 | 2018-05-30 | |
| Ørvikåsen | Telemark, Norway | 2 | 2 | 0 | 2018-06-03 | |
| Østby | Trøndelag, Norway | 3 | 3 | 0 | 2007-04-17 | |
| Østbyveien | Akershus, Norway | 2 | 1 | 2 | 2024-06-09 | |
| Østbyveien | Akershus, Norway | 1 | 1 | 1 | 2020-09-16 | |
| Østensjø | Oslo, Norway | 3 | 3 | 0 | 2007-04-11 | |
| Østensjøvannet | Oslo, Norway | 1 | 1 | 1 | 2007-04-27 | |
| Østensjøvannet | Oslo, Norway | 3 | 3 | 3 | 2016-06-05 | |
| Østernvannet | Akershus, Norway | 7 | 7 | 0 | 1990-08-28 | |
| Østervik | Nordland, Norway | 1 | 1 | 1 | 2016-05-04 | |
| Østerøya | Vestfold, Norway | 3 | 1 | 0 | 1993-11-24 | |
| Østerøyveien 405 | Vestfold, Norway | 1 | 1 | 0 | 2017-03-23 | |
| Østlandet | Oslo, Norway | 4 | 4 | 0 | 2007-04-19 | |
| Østre Halsen | Vestfold, Norway | 14 | 1 | 0 | 1996-10-16 | |
| Østre Kvaknes-Staubø | Agder, Norway | 10 | 1 | 0 | 1994-11-04 | |
| Østre Kvelde | Vestfold, Norway | 2 | 2 | 0 | 2008-04-22 | |
| Østre Langøy | Telemark, Norway | 1 | 1 | 1 | 2024-06-09 | |
| Østre Torp | Akershus, Norway | 1 | 1 | 0 | 2018-04-08 | |
| Østvangvegen 95 | Innlandet, Norway | 1 | 1 | 0 | 2020-03-31 | |
| øståsen | Buskerud, Norway | 5 | 4 | 0 | 2008-04-10 | |
| Øvrafjelle | Rogaland, Norway | 2 | 2 | 2 | 2020-09-10 | |
| Øvrafjelle | Rogaland, Norway | 3 | 3 | 6 | 2020-09-04 | |
| øvre alta | Finnmark, Norway | 1 | 1 | 0 | 2007-04-20 | |
| Øvre Alta | Finnmark, Norway | 1 | 1 | 0 | 2013-04-26 | |
| Øvre Alta | Finnmark, Norway | 1 | 1 | 0 | 2013-05-08 | |
| øvre brauta 21 | Rogaland, Norway | 2 | 2 | 0 | 2022-09-09 | |
| Øvre Brekka | Innlandet, Norway | 1 | 1 | 0 | 2007-04-17 | |
| Øvre Brenn | Innlandet, Norway | 9 | 5 | 0 | 2023-04-25 | |
| Øvre Dagsvik | Nordland, Norway | 2 | 2 | 0 | 2010-04-28 | |
| Øvre Eidfjord | Vestland, Norway | 1 | 1 | 1 | 2007-04-24 | |
| Øvre Eidfjord | Vestland, Norway | 14 | 12 | 0 | 2007-05-07 | |
| Øvre Hellefossvei | Buskerud, Norway | 2 | 2 | 0 | 2020-04-10 | |
| Øvre Hoelsjø | Akershus, Norway | 1 | 1 | 0 | 1994-09-12 | |
| Øvre Langviksveien 17 | Trøndelag, Norway | 1 | 1 | 0 | 2019-04-05 | |
| Øvre Maudal | Rogaland, Norway | 4 | 1 | 0 | 2019-04-22 | |
| Øvre Nes | Buskerud, Norway | 1 | 1 | 1 | 2020-09-12 | |
| Øvre Nigard Skurdal | Innlandet, Norway | 1 | 1 | 1 | 2022-08-30 | |
| Øvre Ottestad | Innlandet, Norway | 1 | 1 | 0 | 2008-04-29 | |
| Øvre reipa | Trøndelag, Norway | 1 | 1 | 0 | 2024-03-07 | |
| Øvre Skalstadvei | Buskerud, Norway | 1 | 1 | 0 | 2020-03-11 | |
| Øvre Spildra | Nordland, Norway | 1 | 1 | 1 | 2020-09-22 | |
| Øvre Stabekk | Akershus, Norway | 1 | 1 | 0 | 2018-01-26 | |
| Øvre Storfjordvatnet | Nordland, Norway | 23 | 23 | 0 | 1989-09-01 | |
| Øvre Surnadal | Møre og Romsdal, Norway | 1 | 1 | 2 | 2015-06-12 | |
| Øvre Svinholtdam | Telemark, Norway | 1 | 1 | 0 | 2015-04-28 | |
| Øvre Sæbø | Vestland, Norway | 2 | 2 | 2 | 2020-09-21 | |
| Øvre Tellevik, Hordvik | Vestland, Norway | 1 | 1 | 1 | 2022-10-27 | |
| Øvre Tollevikveien | Finnmark, Norway | 1 | 1 | 0 | 2021-06-03 | |
| Øvrehagen | Rogaland, Norway | 41 | 2 | 0 | 2007-05-20 | |
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