Non-native trees

Non-native trees also known as “non-indigenous”, “alien”, “introduced”, “allochthonous” or “exotic” trees, are tree species, breeds or hybrids in the Alpine Space region whose presence there is the result of human activity by way of intentional (e.g. page|assisted migration]]) or accidental introduction.

By contrast, native trees are tree species of natural, post-glacial forest development in the Alpine Space region.