Pacific Island Ecosystems at Risk (PIER)
The PIER database is focused on plant species that are known to have been introduced to the Pacific region including the Pacific Rim. It provides listings and descriptions of plant species that threaten ecosystems and also listed many other invasive and potentially invasive plant species present in and around the Pacific region
Secretariat of the Pacific Regional Environment Programme
A direct internet link to access the PIER (Pacific Islands Ecosystem at Risk) webpage, listing invasive and potentially invasive plant species present in and around the Pacific region.