Invasive Species: any species of insects, animals, plants and pathogens, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to that ecosystem; and whose introduction does...
Protecting California's wildlands through research, restoration and education: the California Invasive Plant Council works to educate the public, landowners, land managers and policy makers about the problem of invasive plants, and works wi...
A comprehensive, online information system that facilitates access to and exchange of invasive species data and resources by researchers, scientists, and concerned citizens. USA only.