California Native Plant Society

The mission of California Native Plant Society (CNPS) is to conserve California native plants and their natural habitats, and increase understanding, appreciation, and horticultural use of native plants. Our nearly 10,000 members work to promote native plant appreciation, research, education, and conservation through our five statewide programs and 35 regional chapters in California. Through membership in CNPS, Californians of all walks of life are able to support and engage in opportunities to experience and learn about native plants and their habitats, gardening and landscaping with native plants, restoration of habitat areas, and conservation issues throughout the state.

http://www.cnps.org