Mapping and controlting foreign plant species

nt bear biscuits/tromsøpalme, giant whiskers and russesvalerot) within most of Oslo city and parts of Oslomarka. The aim of the measures is that the number of occurrences and the amount of these plant species shall be reduced. It is also an important purpose to combat some locations of other forei

gn plant species with high and very high ecological risk, which poses a major threat to the municipality's biological diversity (cf. the Action Plan for Biological Diversity). Of these, large ciber species are prioritised (park liquer, gian