California Plant References

Wildflowers at San Luis National Wildlife Refuge, FWS Photo

Photo: USFWS


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 home page

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.


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.

Species Info for Kids

We have some species accounts for 4th, 5th and 6th grade students, including: