Populus balsamifera (Eastern Balsam Poplar)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Nils Battin | Agder, Norway | 6 | 1 | 0 | 2024-04-22 |
| Re videregående skole | Vestfold, Norway | 4 | 1 | 0 | 2022-09-02 |
| Torunn Hansen | Nordland, Norway | 3 | 1 | 0 | 2011-05-11 |
| Nord-Aurdal barneskole | Innlandet, Norway | 1 | 1 | 0 | 2022-09-08 |