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.
California is a biodiversity hotspot.
We save the plants that make it so.
What We Do
We’re on a mission to save California’s native plants and places using both head and heart. CNPS brings together science, education, conservation, and gardening to power the native plant movement.
Why We Do It
Plants are the foundation of our ecosystems.
Saving plants
saves places.
Supports the
web of life.
Saves the California
we love.
Recent News & Stories
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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.