Jepson eFlora Filtered Keys using KeyBase

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NOTE: The server supporting Keybase was attacked and the code damaged by hackers in late 2021. UCJEPS was undergoing a major update of all filter keys during this attack. Keybase developers were able to restore a archived version of UCJEPS Keybase files. However, the ability for users to securely update filter keys has been disabled for an indetetminate period of time. Fixing this issue is costly.

This version of keybase does not have any new taxa or name changes made to the eflora for Revisions 10 through 13. Keys for taxa that have been unchanged are still usable.

KeyBase is a dichotomous key platform hosted by Royal Botanical Gardens, Victoria, with an interface that allows one to easily navigate dichotomous keys and "filter" them with a checklist, removing key leads that do not pertain to any terminal taxa in the checklist.

The Jepson eFlora dichotomous keys are fully integrated into KeyBase, essentially making a regional flora available for any of the Jepson bioregions. Select the region in which you found your plant, and you will be taken to a simplified version of the eFlora keys in KeyBase. (e.g. Key to Plants of the Sierra Nevada, Key to Plants of the San Gabriel Mountains) Taxon names in KeyBase link back to Jepson eFlora taxon pages.

Get Started: Select a region CA-FP  NW    NCo    NCoR      NCoRH      NCoRI      NCoRO    KR  CaR    CaRF    CaRH  SN   nSN (nSNF + nSNH)   cSN (cSNF + cSNH)   sSN (sSNF + sSNH)    SNF      nSNF      cSNF      sSNF    SNH      nSNH      cSNH      sSNH    Teh  GV    ScV    SnJV  CW    CCo    SnFrB    SCoR      SCoRI      SCoRO  SW    SCo    ChI      nChI      sChI    PR      SnJt      PR exc SnJt    TR      WTR      SnGb      SnBrGB  MP    Wrn    MP exc Wrn  SNE    W&I    SNE exc W&ID  DMoj    DMtns    DMoj exc DMtns  DSon

NOTE: The KeyBase taxon filters are based on Jepson eFlora author's assertions of taxon ranges. As we have discovered from comparing Consortium of California Herbaria (CCH) specimen records to eFlora authored ranges in the Yellow Flag project, there are many plant populations that occur outside the eFlora authored ranges. If a filtered key does not bring you to an answer that matches the plant you are identifying, try using a more relaxed filter (e.g. use the Sierra Nevada filter instead of the Central Sierra Nevada Foothills filter), or use the full key if necessary.

For feedback regarding KeyBase software, contact Niels Klazenga (Niels.Klazenga@rbg.vic.gov.au)

For feedback regarding how Jepson eFlora content is displayed in KeyBase, contact Jason Alexander (jason_alexander@berkeley.edu)

Recent Update History
Oct. 20, 2023: Bioregion species lists NOT updated for Revision 11.
Apr. 20, 2022: Bioregion species lists NOT updated for Revision 10.
Dec. 23, 2021: Bioregion species lists updated for Revision 9.

List California Provinces, Regions and Subregions (click on any link on the list below to view the filtered key) CA-FP  California Floristic Province   NW  Northwestern California     NCo  North Coast subregion     NCoR  North Coast Ranges subregion       NCoRH  High North Coast Ranges district       NCoRI  Inner North Coast Ranges district       NCoRO  Outer North Coast Ranges district     KR  Klamath Ranges subregion   CaR  Cascade Ranges     CaRF  Cascade Range Foothills     CaRH  High Cascade Ranges   SN  Sierra Nevada    nSN   northern Sierra Nevada subregion (nSNF + nSNH)    cSN   central Sierra Nevada subregion (cSNF + cSNH)    sSN   southern Sierra Nevada subregion (sSNF + sSNH)     SNF  Sierra Nevada Foothills subregion      nSNF  northern Sierra Nevada Foothills      cSNF  central Sierra Nevada Foothills      sSNF  southern Sierra Nevada Foothills     SNH  High Sierra Nevada subregion      nSNH  northern High Sierra Nevada      cSNH  central High Sierra Nevada      sSNH  southern High Sierra Nevada     Teh  Tehachapi Mountains subregion   GV  Great Central Valley     ScV  Sacramento Valley     SnJV  San Joaquin Valley   CW  Central Western California     CCo  Central Coast subregion     SnFrB  San Francisco Bay Area subregion     SCoR  South Coast Ranges subregion       SCoRI  Inner South Coast Ranges district       SCoRO  Outer South Coast Ranges district   SW  Southwestern California     SCo  South Coast     ChI  Channel Islands       nChI  northern Channel Islands       sChI  southern Channel Islands     PR  Peninsular Ranges       SnJt  San Jacinto Mountains       PR exc SnJt  Peninsular Ranges excluding San Jacinto Mtns     TR  Transverse Ranges       WTR  Western Transverse Ranges       SnGb  San Gabriel Mountains       SnBr  San Bernardino Mountains GB  Great Basin Province   MP  Modoc Plateau     Wrn  Warner Mountains     MP exc Wrn  Modoc Plateau excluding Warner Mtns   SNE  East of Sierra Nevada     W&I  White and Inyo Mountains     SNE exc W&I  East of Sierra Nevada excluding White & Inyo Mtns D  Desert Province   DMoj  Mojave Desert     DMtns  Desert Mountains     DMoj exc DMtns  Mojave Desert excluding Desert Mtns   DSon  Sonoran Desert

The Jepson eFlora divides California into 35 ecologically distinct bioregions for the purpose of indicating where plant taxa grow. The smallest subdivision defined as a distinct bioregions, depends on how finely each region is ecologically divided. One bioregion, the Sonoran Desert, is at the finest scale at the region-level, and is not divided into subregions. The other nine regions are further divided into two or more subregions. Seven subregions are further divided into two or more districts. All regions are grouped into three main provinces, as shown in the maps above.

Each terminal taxon treatment in the Jepson eFlora indicates the treatments in which the taxon is asserted to occur. Using this information, a checklist for any subregion, region or province can be made (see the eFlora Tools page for a tool that does exactly that).

For full descriptions of each bioregion, see Geographic Subdivisions of California