Tråstad ungdomsskole
| Species | Scientific name | 2015 | 2016 |
|---|---|---|---|
| Hagelupin | Lupinus polyphyllus | 4 | |
| Giant Hogweed | Heracleum mantegazzianum | 8 | 3 |
| Parkslirekne | Reynoutria japonica | 2 | |
| Sycamore | Acer pseudoplatanus | 12 | |
| Russekål | Bunias orientalis | 13 | 3 |
| Rynkerose | Rosa rugosa | 3 | 1 |
| Winter-cress | Barbarea vulgaris | 3 | |
| Planteriket | Plantae indet. | 1 |
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