California Native Plant Society, East Bay Chapter (Berkeley, CA)


  • Name:Mack Casterman
  • Title:Conservation Analyst

Organization Address

  • Organization Name:California Native Plant Society, East Bay Chapter
  • Address:PO Box 5597
    Elmwood Station
    Berkeley, CA 94705
    United States

Organization Phone

  • Main phone:510-734-0335

Organization Web

User Email


Click map for a full size active view.


  • Mission:
  • The mission of CNPS is to conserve California native plants and their natural habitats, and increase understanding, appreciation, and horticultural use of native plants. Our vision includes a future where:
    • Californians actively support the Society's mission, which is accomplished through education, plant science, advocacy, land stewardship and native plant gardening.
    • Californians value native plants, plant communities and healthy ecosystems as essential to the well being of all living things.
    • Californians can experience native plants throughout the state, in natural environments and human-made landscapes.
    • California’s extensive and interconnected natural habitats are preserved.
    • CNPS is the leader for providing reliable information on California native plants and plant conservation. Comprehensive information about California’s flora and vegetation communities is available throughout the state for conservation and educational purposes.
    • CNPS leadership influences personal ethics and actions, as well as public policy for native plant protection.

  • History:
  • In 1965, the East Bay Regional Park District in Oakland was threatening to discontinue the arboretum of native plants in Tilden Park, and to dismiss its supervisor, James Roof. This brought forth a series of protests and organized meetings on the part of citizens who loved the arboretum and felt that it served a valuable purpose in the cultural life of the area. After a vigorous campaign, they succeeded in blocking the proposed dismantling, and the victors realized that much more could be done to save from destruction the rare native plants of California. The need was great, and no other organization was meeting the challenge. Both the Sierra Club and The Nature Conservancy were sympathetic, but their energies were and are directed toward more diverse goals. The professional botanical societies were making gestures, but not undertaking vigorous, concerted action.

    This vacuum in protection for native plants prompted a small but highly dedicated group of plant lovers to organize our society. Initially, the Society's plan of action was to interest other plant lovers in every way possible, to monitor the activities of private and public agencies whose plans would in any way destroy rare species or disrupt natural plant communities, to prepare whatever countermeasures might be necessary to stop them, and to seek donations from organizations and private citizens.

    Today, 46 years later, the California Native Plant Society (CNPS) is a statewide non-profit organization of amateurs and professionals with a common interest in California's native plants. Our nearly 10,000 members (1,200 of whom make up the East Bay Chapter) work to promote native plant appreciation, research, education, and conservation through our five statewide programs and 33 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.

    CNPS continues to work hard to protect California's native plant heritage and preserve it for future generations. CNPS actively promotes the use of science in land use and management decisions through our Online Rare Plant Inventory and essential reference book: Manual of California Vegetation, 2nd Edition, both of which are the most advanced resources available for identifying and managing critical habitat in California. We work closely with decision-makers, scientists, and local planners to advocate for well-informed and environmentally friendly policies, regulations, and land management practices.

  • Year established:1965
  • Endowment:Unknown


  • Executive / Trustee board size:17
  • Advisory board size:
  • Staff size:1


  • Organization type:Grantseeker
  • Country of registration:United States
  • Tax Determination Letter:Received Determination Letter
  • IRS Section:501(c)(3)
  • IRS Subsection:None
  • Tax ID:00-0000000

Other Organization Web