California Native Plant Society
Audubon
Ecological Landscaping Association
California Invasive Plant Council
War on Weeds
Return of the Natives
SerCal
California Native Grass Association
Gardening with Natives
Lose the Lawn
Xerces Society
Community Alliance for Family Farmers
Wild Farm Alliance
The Center for Invasive Plant Management
Idaho Native Plant Society
Botanical Gardens and Places to see Natives:
San Francisco Botanic Garden at Strybing
University of California, Santa Cruz Arboretum
University of California Berkeley Botanic Garden
University of California Davis Arboretum
East Bay Regional Parks
Santa Barbara Botanic Garden
Gamble Garden, Palo Alto
Lester Rowntree Garden, Carmel