Select Page

Protect

Nicasio Ridge IMG 8414w
Point Reyes from Nicasio Ridge – (photo by Vernon Smith)

Marin County’s Unique Native Plant Heritage. Marin County has a unique concentration of diverse plant habitats that range from marine to coastal to higher elevation plant communities in the space of a few miles. The County is a vegetation border zone where a number of plants from the south reach their northern limit and a number from the north reach their southern limit. We are also home to many rare and endangered endemic plants that grow nowhere else but in Marin County. The value and uniqueness of the native plant habitats in Marin County have been recognized by inclusion of most Marin public open space land in the United Nations-designated Golden Gate Biosphere Reserve.

Threats to Native Plants and Habitats in Marin: Many native plant habitats in Marin are under siege. They are threatened by the spread of destructive invasive species such as broom, pampas grass and yellow star thistle, by recreational uses that degrade native plant habitats, by rapid climate change that exceeds their ability to adapt; and by lack of understanding of the importance of preserving native plants and habitats, including for biodiversity.

Marin CNPS Working to Protect Marin’s Native Plants and Habitats: The Marin Chapter of the California Native Plant Society works to protect our native plants and habitats. We welcome and need volunteers interested in helping to ensure that the native plants we enjoy in the wild continue to exist and flourish. Our work takes many forms: comment on development proposals and public land use plans affecting native plants, work with public land managers and other non-profit organizations to conserve and restore native plant habitats, organization of weeding programs to protect rare species threatened by exotic invasives, and public education about threats to native plants. In this PROTECT section of the website you will find out more about our work and how you can get involved.

  • Conservation Committee: The Chapter’s Conservation Committee coordinates this work, which includes reviewing and commenting on plans and proposals such as development proposals and public land use plans that may affect native plants in Marin County.
  • Current Issues: Issues Marin CNPS is currently following.
  • Advocacy;Positions the Chapter has taken on various plans and proposals.
  • Invasive Plant Awareness: Information on exotic invasive plants that threaten native flora.
  • Volunteer Opportunities: Ways you can help protect our native plants through Marin CNPS and other organizations.
  • Resources: Additional information on protecting native plants and other organizations involved in this work.

Use the links at right to learn more about these categories.

CNPS Statewide Invasive Species Committee News

Latest News from the CNPS Statewide Invasive Species Committee June 17, 2025 – Caroline Christman This meeting focused on invasive species outreach. Liv O’Keeffe, CNPS Senior Director of Public Affairs, attended to hear ideas on how CNPS can improve education and outreach related to invasive species stewardship to protect native plant diversity (i.e., website presence, articles, media).... read more CNPS Statewide Invasive Species Committee News

Invasive Plants Threaten Biodiversity

Invasive plants can significantly impact many of the complex relationships in California’s beautiful and biodiverse landscape. California is home to some of the most beautiful and biodiverse areas in the world: oak woodlands to redwood forests; serpentine and valley grasslands to alpine meadows; coastal wetlands to riparian corridors. These communities support an astonishing variety of... read more Invasive Plants Threaten Biodiversity

Update on 30×30, the ambitious goal of conserving 30% of California’s lands and coastal waters by 2030

California signed on to 30×30 in 2020 through Governor Newsom’s Nature-Based Solutions Executive Order N-82-20—a commitment to conserve 30% of the state’s lands and coastal waters by 2030. The CA Nature platform was also launched at that time to identify conservation opportunities and transparently track and report progress. The California Natural Resources Agency is excited to report that... read more Update on 30×30, the ambitious goal of conserving 30% of California’s lands and coastal waters by 2030

Case Against Marin Water’s Bicycle “Pilot Programs” Settled

By David Long, CNPS Marin Chapter Board Member In September 2024, CNPS, Marin Conservation League (MCL), and Marin Audubon Society brought an action against the Marin Municipal Water District (MMWD, aka Marin Water) for approving, without CEQA* review, two pilot projects that would have dramatically expanded bicycle and e-bike access to the Mt. Tamalpais watershed, including use of singletrack... read more Case Against Marin Water’s Bicycle “Pilot Programs” Settled