Psidium cattleianum

Institute of Pacific Islands Forestry
Pacific Island Ecosystems at Risk
Plant threats to Pacific ecosystems

Forest Service shield

Caring for the Land and Serving People

Pacific Island Ecosystems at Risk provides listings and descriptions of plant species that threaten ecosytems of the Pacific islands.  Also listed are many other invasive and potentially invasive plant species present in and around the Pacific region.
PIER has recently added new species profiles. These species have been recently evaluated by a weed risk assessment as being other-than-low-risk for invasive potential in the Hawaii-Pacific region.


Status of PIER:  PIER is once again being updated, at least for the immediate future.  The last updates were made 13 February 2018 and were posted 09 March 2018.

Information on some species may be incomplete or missing.   Contributions of information, photos, drawings, etc. are solicited and will be properly credited or cited.  Also, please look at the list of possible additional species nd let us know if you think they should be added as threats to Pacific islands. 

Need more info? Have questions? Comments? Information to contribute? Contact PIER! (

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PIER website version 20180602 (posted online 02 June 2018)
This page was created a long time ago by JS, and was last updated on 02 June 2018 by PT.