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Rare Company
Photo essay: 10 singular species get their conservation close-ups with CNPS’s Rare Plant Program. -
50 Years Protecting Rare Plants: Reflections on the RPI with Julie Kierstead and Heath Bartosh
For 50 years, the California Rare Plant Inventory has served as the essential resource for understanding and protecting rare plant species in the state. -
“List 3” Plants on the Rare Plant Inventory
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. -
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. -
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. -
The Many Uses of the CNPS Rare Plant Inventory
It sounds mysterious and magical, like an ancient tome you would check out of the library. Where does it come from?
