Registered trees
| All participants | » | Norway | » | » |
| Tree | Species | School | Site |
|---|---|---|---|
| Aesculus | Horse-chestnut | Hellerud videregående skole | Hellerud videregående skole (Oslo, Norge) |
| Aesculus | Horse-chestnut | Hellerud videregående skole | Hellerud videregående skole (Oslo, Norge) |
| Quercus spp | Oak | Hellerud videregående skole | Hellerud videregående skole (Oslo, Norge) |
| Quercus spp | Oak | Hellerud videregående skole | Hellerud videregående skole (Oslo, Norge) |
| aesculus | Horse-chestnut | Hellerud videregående skole | Hellerud videregående skole (Oslo, Norge) |