Betula nana (Dwarf Birch)
| Deltaker | Kommune (fylke) | Ant. obs. | Ant. arter | Ant. bilder | Siste obs. |
|---|---|---|---|---|---|
| Gunvor Hustoft | Rogaland, Norway | 16 | 2 | 2 | 2024-05-20 |
| Bergen katedralskole | Vestland, Norway | 6 | 1 | 5 | 2019-08-28 |
| Tonstad skule | Agder, Norway | 5 | 1 | 0 | 2010-06-11 |
| Stranda vidaregåande skule | Møre og Romsdal, Norway | 4 | 2 | 1 | 2017-09-18 |
| Gottfred Labakk | Nordland, Norway | 4 | 1 | 0 | 2012-07-28 |
| SamiAllaskuvla | Finnmark, Norway | 1 | 1 | 0 | 2019-04-25 |
| Nord-Gudbrandsdal vidaregåande skule/Avd Otta | Innlandet, Norway | 1 | 1 | 0 | 1989-08-24 |
| Ellen Palmstrøm | Buskerud, Norway | 1 | 1 | 0 | 2011-05-08 |
| Åge Arntzen | Vestland, Norway | 1 | 1 | 0 | 2010-09-19 |
| Midt-Østerdal videregående skole/Koppang | Innlandet, Norway | 1 | 1 | 0 | 1989-09-14 |