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Non-Governmental Organizations

Some NGOs in the region sponsor volunteer work days to remove invasive plants. Here, a volunteer removes broom along the American River at an event organized through the local chapter of the California Native Plant Society.
Photo: Frank Wallace, Sacramento Weed Warriors

A few NGOs focus on invasive species control exclusively, and many other NGOs include work on the issue as part of their mission to preserve habitat or agriculture. There are also several coalitions of groups working together on invasive plant issues.


River Partners works to protect habitat along the Sacramento River, including projects to address invasive plants.

Friends of Bidwell Park in Chico does extensive work on invasive plants.

Sacramento Weed Warriors, a volunteer project organized by the Sacramento Chapter of the California Native Plant Society, holds activities and events, and provides volunteer opportunities.

The California Native Plant Society has chapters throughout the Sacramento River Watershed, including:


California Invasive Plant Council (Cal-IPC) is dedicated to protecting California’s wildlands from invasive plants through research, restoration and education. Cal-IPC is part of the National Association of Exotic Pest Plant Councils.

California Native Plant Society (CNPS) works to protect native plants, and has a committee dedicated to the threat of invasive plants. They also promote gardening with natives, and have local chapters across the state.

California Invasive Weeds Awareness Coalition (CALIWAC) pulls together representatives of environmental groups and agricultural producer groups to promote public awareness and sound policy for invasive plants in California.

California Horticultural Invasives Prevention (Cal-HIP) partnership pulls together representatives of environmental groups and horticultural producer groups to address the need to keep invasive plants out of the trade. The PlantRight campaign recommends sound practices for nurseries, gardeners and landscape professionals. See Responsible Landscaping.


The Nature Conservancy’s Invasive Species Initiative seeks to address the problems posed by invasive plants and animals “through a combination of prevention, early detection, eradication, restoration, research and outreach.” Their office at UC Davis maintains the informative TNC Weeds website. TNC also manages property in the region, such as the Dye Creek Preserve.

Audubon’s Stop Invasive Species Campaign provides information about invasive species and their impacts on habitat for birds and other animals.