Invasive Here but not There

The following species are known to be native in parts of Pennsylvania as well as invasive in other areas of the state. 


Contact the state administrator if you believe there are additional species which should be included on our "Invasive Here but Not There" page.


The Pennsylvania iMapInvasives Program is a partnership of the Western Pennsylvania Conservancy, the Pennsylvania Natural Heritage Program, and NatureServe.

Funding for Pennsylvania iMapInvasives is provided by the Great Lakes Restoration Initiative.

NatureServe logo, iMapInvasives partner
Pennsylvania Natural Heritage Program, iMapInvasives partner
Great Lakes Restoration Initiative logo, iMapInvasives funding source