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California Plant References
California Department of Fish & Game
- Endangered, Threatened & Rare Plants List (PDF)
- Special Plants List (PDF)
- Project guidelines (PDF)
- Field Survey Form (PDF)
CalFlora
CalFlora has information on wild California plants for conservation, education and appreciation.
Free registration for amateurs enthusiasts, students and educators. Registration for professional users is $150 per year.
California Native Plant Society
CNPS Inventory of Rare and Endangered Plants of California. The online version allows you to find all the sensitive plants in any occupied U.S.G.S. 7½ minute quad in California.
Glossary of Terminology and Acronyms Related to Rare Plant Protection (PDF).
CalPhotos
CalPhotos is an online resource containing thousands images of California plants. (Photos of animals, landscapes, etc., too.)
Jepson Manual
The Jepson Manual: Higher Plants of California. This is the standard reference about California plants. The Manual is available in an Online version. See also the Jepson Online Interchange for updates.
Last updated: October 30, 2008
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Credits: San Luis National Wildlife Refuge wildflowers, USFWS photos. Large photo by Carley Sweet, shown in smaller photo
