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Jepson eFlora

Willis Linn Jepson in the Vaca Hills, 1942, Neat M. Tate Jepson YouTube Channel Arctostaphylos ohloneana, Neal Kramer Calochortus venustus, John C. Game Caulanthus inflatus, John C. Game
Phylogenetic index to families

The Jepson eFlora is the foremost authority on the native and naturalized vascular plants of California. For plants occurring in wildlands or otherwise outside of cultivation, the Jepson eFlora contains taxonomic treatments, distribution maps, illustrations, photographs, and identification keys.
Citation: Jepson Flora Project (eds.) 2023. Jepson eFlora, [accessed on Feb 08, 2023].

Search the eFlora for a name:


Identify a plant from your region:

Simplify plant identification with the new application KeyBase, which filters keys based on Jepson regions:

Scientific Name

Common Name

Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

eFlora Tools


Geographic subdivisions of California

Table of families and genera

Key to families

About the Jepson eFlora

Treatments and keys in the Jepson eFlora were initially derived from The Jepson Manual: Vascular Plants of California, Second Edition (TJM2), available from University of California Press.

The eFlora expands on the content of TJM2, including descriptions of taxa not included in the print book (e.g. waifs, agricultural weeds), substantive revisions of scientific content for some taxa, and many errata and other small changes made relative to the print book.

Recent Major Updates

Dec. 23, 2022: Revision 11 is posted online. Summary of Revision 11.

May 31, 2022: Revision 10 is posted online. Summary of Revision 10.

Dec. 23, 2021: Revision 9 is posted online. Summary of Revision 9.

Dec. 21, 2020: Revision 8 is posted online. Summary of Revision 8.

Dec. 20, 2019: Revision 7 is posted online. Summary of Revision 7.

Sep. 21, 2018: Revision 6 is posted online. Summary of Revision 6.

Dec. 21, 2017: Revision 5 is posted online. Summary of Revision 5.

Dec. 23, 2016: Revision 4 is posted online. Summary of Revision 4.

Feb. 26, 2016: Regional eFlora keys now available in KeyBase.

Dec. 18, 2015: Revision 3 is posted online. Summary of Revision 3.

Dec. 8, 2015: New eFlora taxon pages are now available, featuring illustrations, more photographs, and neater display and navigation.

Sept. 21, 2015: Geographic Subdivisions Map updated to reflect Klamath Ranges geology.

List of all updates. Click here for the comprehensive list (2011-2018) and to see when the eflora was last updated with minor corrections.


Bruce G. Baldwin, Convening Editor, University and Jepson Herbaria

David J. Keil, Professor Emeritus, California Polytechnic State University, San Luis Obispo

Staci Markos, Assistant Director for Development & Outreach, University and Jepson Herbaria

Brent D. Mishler, Director, University and Jepson Herbaria

Robert Patterson, Department of Biology, San Francisco State University

Thomas J. Rosatti, Scientific Editor, University and Jepson Herbaria

Dieter H. Wilken, Research Associate, Santa Barbara Botanic Garden

eFlora Editorial Policy


The Jepson eFlora is a product of the Jepson Flora Project.