Irresponsible introduction of exotic species

Introduced plants are increasingly dominating Britain's wild areas according to the Plant Atlas 2020, a report summarising decades of observations of British flora. Of the almost 3,500 British plant species, non-native plants now outnumber native species by 51% to 49% as a result of centuries of introductions.  More than half of the Britain's native plants are in decline, while introduced species are thriving.  58% of non-native species now cover a larger area than that of natives. Some introduced species have become invasive, with plants such as New Zealand pygmyweed and garden lady's-mantle spreading rapidly across the country and outcompeting native species.