California Invasive Plant Council >>
Resource for invasive species identification and management

California Native Plant Society >>
Non-profit dedicated to conserving California native plants, increasing the understanding, enjoyment, and horticultural use of native plants, and providing land management practices that help preserve native plants

UC Integrated Pest Management Program >>
Resource for invasive species identification and management

US Forest Service – Non-native Invasive Species >>
Best management practices to reduce the impacts of non-native invasive plant species