Jepson eFlora: Filtered Keys using KeyBase

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      NCoRO      NCoRI      NCoRH    KR  CaR    CaRF    CaRH  SN    SNF      nSNF      cSNF      sSNF    SNH      nSNH      cSNH      sSNH    Teh  GV    ScV    SnJV  CW    SCoR      SCoRO      SCoRI    CCo    SnFrB  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)

List California Floristic Provinces, Regions and Bioregions (click on any link on the list below to view the filtered key) CA-FP  California Floristic Province   NW  Northwestern California     NCo  North Coast     NCoR  North Coast Ranges       NCoRO  Outer North Coast Ranges       NCoRI  Inner North Coast Ranges       NCoRH  High North Coast Ranges     KR  Klamath Ranges   CaR  Cascade Ranges     CaRF  Cascade Range Foothills     CaRH  High Cascade Ranges   SN  Sierra Nevada     SNF  Sierra Nevada Foothills      nSNF  northern Sierra Nevada Foothills      cSNF  central Sierra Nevada Foothills      sSNF  southern Sierra Nevada Foothills     SNH  High Sierra Nevada      nSNH  northern High Sierra Nevada      cSNH  central High Sierra Nevada      sSNH  sourthern High Sierra Nevada     Teh  Tehachapi Mountains Area   GV  Great Central Valley     ScV  Sacramento Valley     SnJV  San Joaquin Valley   CW  Central Western California     CCo  Central Coast     SnFrB  San Francisco Bay Area     SCoR  South Coast Ranges       SCoRO  Outer South Coast Ranges       SCoRI  Inner South Coast Ranges   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 SnJt     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 Wrn   SNE  East of Sierra Nevada     W&I  White and Inyo Mountains     SNE exc W&I  East of Sierra Nevada excluding W&I D  Desert Province   DMoj  Mojave Desert     DMtns  Desert Mountains     DMoj exc DMtns  Mojave Desert excluding DMtns   DSon  Sonoran Desert

The Jepson eFlora divides California into 35 ecologically distinct "bioregions" for the purpose of indicating where plant taxa grow. These divisions are grouped into regions, which 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 bioregion, 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

Copyright © 2021 Regents of the University of California We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.