Betulaceae
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Bioforsk Midt-Norge | Trøndelag, Norway | 95 | 3 | 0 | 2007-04-20 |
| Stryn vidaregåande skule | Vestland, Norway | 87 | 6 | 8 | 2024-05-07 |
| Gunvor Hustoft | Rogaland, Norway | 86 | 8 | 3 | 2024-05-06 |
| Alvøen skole | Vestland, Norway | 82 | 2 | 6 | 2021-05-20 |
| Haugaland landbruksrådgjeving | Vestland, Norway | 74 | 3 | 0 | 2024-04-28 |
| Rune Nilsen | Agder, Norway | 73 | 2 | 2 | 2024-05-07 |
| Meteorologisk institutt | Oslo, Norway | 68 | 1 | 0 | 2006-06-20 |
| Unni R. Bjerke Gamst | Troms, Norway | 57 | 2 | 0 | 2013-04-29 |
| Goa skole | Rogaland, Norway | 55 | 2 | 20 | 2022-08-26 |
| Vestre Jakobselv skole | Finnmark, Norway | 47 | 1 | 5 | 2023-10-25 |
| Kalvatræet skole | Vestland, Norway | 43 | 1 | 0 | 2010-05-19 |
| Alta ungdomsskole | Finnmark, Norway | 43 | 1 | 4 | 2023-09-25 |
| Alta oppvekstkontor | Finnmark, Norway | 40 | 1 | 0 | 2015-05-31 |
| Tove Hamre | Innlandet, Norway | 39 | 4 | 0 | 2019-04-29 |
| Uregistrert vårsjekker | Vestland, Norway | 36 | 1 | 0 | 2008-08-26 |
| Haukås skole | Vestland, Norway | 34 | 2 | 0 | 2022-05-05 |
| Nils Battin | Agder, Norway | 32 | 5 | 0 | 2024-05-07 |
| Re videregående skole | Vestfold, Norway | 31 | 3 | 0 | 2022-09-09 |
| Sandsli videregående skole | Vestland, Norway | 28 | 4 | 3 | 2013-05-30 |
| Ingar Granholt | Vestfold, Norway | 28 | 3 | 8 | 2024-04-20 |
| Fjelltun skole | Rogaland, Norway | 27 | 3 | 0 | 2022-09-09 |
| Guri L. Ravatn | Rogaland, Norway | 25 | 1 | 0 | 2007-05-20 |
| Ottar Sætre | Møre og Romsdal, Norway | 24 | 4 | 0 | 2024-04-16 |
| Charlotte Bakke | Telemark, Norway | 23 | 3 | 0 | 2024-04-25 |
| Knappskog skule | Vestland, Norway | 22 | 3 | 16 | 2011-04-25 |
| Frans-Emil Wielgolaski | Oslo, Norway | 22 | 2 | 0 | 2012-03-01 |
| Korsfjord Oppvekstsenter/Avdeling skole | Finnmark, Norway | 22 | 1 | 0 | 2007-12-14 |
| Kirkenes ungdomsskole | Finnmark, Norway | 21 | 1 | 0 | 2021-09-09 |
| Pasvik skole | Finnmark, Norway | 21 | 1 | 0 | 2013-09-11 |
| Marit Hansen | Trøndelag, Norway | 20 | 2 | 0 | 2024-04-27 |
| Ranvik ungdomsskole | Vestfold, Norway | 20 | 2 | 0 | 2015-05-26 |
| Li skole | Akershus, Norway | 19 | 4 | 0 | 2014-06-18 |
| Lund ungdomsskole | Rogaland, Norway | 19 | 2 | 0 | 2023-05-14 |
| Søre Fusa Oppvekstsenter/Avdeling skule | Vestland, Norway | 19 | 3 | 0 | 2013-05-19 |
| Asak skole | Akershus, Norway | 18 | 3 | 0 | 2012-05-08 |
| Bratsbergkleiva skole | Telemark, Norway | 17 | 2 | 0 | 2020-04-03 |
| Stranda vidaregåande skule | Møre og Romsdal, Norway | 16 | 7 | 4 | 2017-09-18 |
| Skien videregående skole/Avd Brekkeby | Telemark, Norway | 16 | 4 | 0 | 2009-05-12 |
| Gottfred Labakk | Nordland, Norway | 16 | 3 | 0 | 2012-07-28 |
| Byrknes skule | Vestland, Norway | 16 | 1 | 0 | 2024-04-14 |
| Flaktveit skole | Vestland, Norway | 16 | 2 | 21 | 2020-04-23 |
| Kaland barne- og ungdomsskule | Vestland, Norway | 15 | 1 | 0 | 2018-05-11 |
| Storetveit skole | Vestland, Norway | 15 | 1 | 0 | 2018-04-12 |
| Jordet skole | Vestfold, Norway | 14 | 3 | 0 | 2010-04-28 |
| Tonstad skule | Agder, Norway | 14 | 2 | 0 | 2010-06-11 |
| Gunnar Hamre | Vestland, Norway | 14 | 1 | 0 | 2024-04-10 |
| Jørpeland ungdomsskole | Rogaland, Norway | 14 | 2 | 13 | 2022-04-26 |
| Tau ungdomsskole | Rogaland, Norway | 13 | 1 | 1 | 2022-09-02 |
| Fjellgardane skule | Agder, Norway | 13 | 2 | 3 | 2014-09-24 |
| Stein-Rune Karlsen | Troms, Norway | 13 | 1 | 0 | 2005-10-27 |