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  • About CNPS
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      • CNPS Press
      • CNPS Scientific Journal
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    • Accountability
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      • Chapter Map
      • Chapter Council
    • Contact
  • Our Work
    • Biodiversity Initiatives
      • 30×30
      • Community Science
      • Horticulture Science
      • Stewardship
      • Survey of California Biodiversity
      • ReOak
    • Conservation
      • Important Plant Areas
      • Climate Change
      • Forestry
      • Desert Conservation
      • Endangered Species
      • Regional Conservation Planning
      • Wildfire and Native Plants
      • Conservation Policies
    • Education
      • Students
        • Student Research Grants 2023
        • CNPS Education Grants
        • Chapter Scholarships
        • Parents and Teachers
        • Networking & Botanical Info
        • Student Workshops
        • Student Advisory Group
      • Workshops
      • Rare Plant Treasure Hunts
      • Botanist Certification
      • 2022 Conference
    • Gardening
      • Getting Started
      • Design Basics
      • Bloom! California
      • Prepping and Planting
      • Digging Deeper
      • Garden Ambassadors
      • Gardening Webinars
    • Rare Plant Program
      • CNPS Inventory of Rare Plants
      • Rare Plant Ranking & Review
        • California Rare Plant Ranks
        • Rare Plant Status Review Forum
      • Endangered Species
      • Rare Plant Treasure Hunts
      • Local Flora – Floristics
      • Locally Rare
      • Rare Plant Photo Collection
      • Field Protocols & Guidelines
      • Rare Plant Program Committee
    • Vegetation Program
      • California Grasslands & Vernal Pools Initiative
      • Sensitive Natural Communities
      • Manual of California Vegetation
      • Plant Community Mapping & Monitoring
      • Field Protocols & Guidelines
      • Classification and Mapping Reports
  • Helpful Tools
    • Calscape
    • Inventory of Rare Plants
    • Manual of CA Vegetation
  • Get Involved
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      • Dudleya Protection
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  • Screenshot of the Rare Plant Inventory featuring an up close image of a pink and yellow Plummer's Mariposa Lily and bud.
    Rare Plants

    CNPS Unveils New Updates to the California Rare Plant Inventory

    January 5, 2023January 5, 2023
    For the first time, the newly updated CNPS Rare Plant Inventory 9.5 makes available public searches on threats and the display of threat summary statistics for over 1,800 rare California native plants.
  • Conservation

    Threatened by Mining, A Tiny Daisy Needs Your Help

    November 18, 2022November 18, 2022
    Threatened by mining, California's tiny and rare Inyo rock daisy is in danger of losing its entire range.
  • Rare Plants

    Exploring the Kern River Watershed

    July 19, 2022
    We looked for rare plants, camped, hiked, went birdwatching, and found fire followers coming up in the French Fire burn area.
  • Rare Plants

    What a Rush! Collecting Juncus digitatus in Nevada County 

    June 29, 2022July 5, 2022
    Named for its distinctive fruits, the rare finger rush grows in vernally moist microhabitats and stands only a few centimeters tall.
  • Siskiyou iris (Iris bracteata)
    Rare Plants

    “List 3” Plants on the Rare Plant Inventory

    June 16, 2022
    Learn about the plants united by one common theme–we lack the necessary information to assign them to one of the other ranks or to reject them.
  • Rare Plants

    Using the Rare Plant Inventory Advanced Search

    May 12, 2022May 12, 2022
    Using the RPI's advanced search allows you to unlock even more capabilities! List/Rank, Location, Biology, and more.
  • Rare Plants

    How to Search the Rare Plant Inventory

    April 28, 2022April 28, 2022
    Over one-third of California’s flora is considered rare. Learn expert tips to search the RPI to prepare a list of rare plant species for a project.
  • Eriogonum nervulosum
    Rare Plants

    The Many Uses of the CNPS Rare Plant Inventory

    April 14, 2022April 27, 2022
    It sounds mysterious and magical, like an ancient tome you would check out of the library. Where does it come from?
  • News Releases

    California Native Plant Society Unveils Major Update to the Online Rare Plant Inventory

    June 2, 2021June 16, 2022
    The Inventory is a widely-used resource guiding rare plant protection, conservation planning, land acquisition, and management in California.  
  • Conservation

    Hope in the Future of Seeds Collected Today

    May 17, 2019April 29, 2022
    Extinction is on the rise worldwide, but California is pushing back. California’s botanical institutions are determined to prevent any further extinction of the state’s native plants.

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