Using the Rare Plant Inventory Advanced Search
Using the RPI's advanced search allows you to unlock even more capabilities! List/Rank, Location, Biology, and more.
Our Work
Working the native plant mission
CNPS Programs
Advancing the native plant mission is a multi-disciplinary effort. Our work is diverse by design, blending science and conservation with gardening and education. Together, we are the voice for native plants. Select from the options below to learn about our core programs.
Many more people focus on animals than plants, or they focus on the human-environment issues. All of these are important, but CNPS fills a specific and important role in protecting natural diversity in California. CNPS has done more than any other group — perhaps in the world — in caring for our native flora.
Susan Cochrane Levitsky
CNPS Legacy Member and former chief of the CA Dept of Fish and Wildlife Natural Heritage Division
From the Blog
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How to Search the Rare Plant Inventory
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. -
Protecting California’s Renowned Plant Diversity
What will it take to protect plant diversity in California? CNPS Biodiversity Initiatives Director Andrea Williams weighs in.