The Borrego Desert

Definition and Floristic Classification of the Borrego Desert

Tom has been working on the Flora of this area beginning in the 2002-2003 season, and Kate since March 2011. Many people have joined us on our surveys, with Wayne Armstrong, Mike Crouse and James Dillane participating in the most surveys.

We are now getting close to having a decent flora of at least part of the area, which is being put online as we go. This site will concentrate mostly on the Flora of the Borrego Desert, including pictures and keys to all our species. However, it will also include other items of interest here, such as climate, rainfall, geology and specific places.

This site was begun on December 2008 with just a few pages created just for it, and has been growing with time after that date. Until all Borrego Desert species have pages done just for this area, this page also contains links to pages discussing Borrego Desert Species from Tom's Plants of southern California site.

Bloom Reports

2014-2015 Borrego Desert Blooms (includes rainfall numbers)

2013-2014 Borrego Desert Blooms (includes rainfall numbers)

2012-2013 Borrego Desert Blooms (includes rainfall numbers)

2011-2012 Borrego Desert Blooms (includes rainfall numbers)

2010-2011 Borrego Desert Blooms (includes rainfall numbers)

2009-2010 Borrego Desert Blooms (includes rainfall numbers)

2008-2009 Borrego Desert Blooms (includes rainfall numbers)

Working Draft for the Flora

The Nifty Fifty: The 51 Most Common Species of the Borrego Desert

The 172 Most Common Species of the Borrego Desert

Preliminary floras for parts of the Borrego Desert are available as Floras and Plant Trail Guides.

Voucher Collection Dates

Preliminary Analysis of the Flora

Preliminary Analysis of Elevations of the Species in the Flora

Rarest Species in the Flora

Species That Skip the Borrego Desert

Field Guide to Plant Species

Plant Species of the Borrego Desert

Also see these pages from the Plants of southern California site:

Botanical Trip Reports

These reports are among all my San Diego County reports; search for Borrego in each page to find the Borrego Desert Reports.

2009 Reports
2008 Reports
2007 Reports
(No reports in 2006)
2005 Reports
2004 Reports

Places in the Borrego Desert, including Maps and Views

Formation of Butler Canyon, Jackass Flat, and Lower Rockhouse Canyon

Clark Valley

Historical Confusion about Blair Valley, Pinyon Mountain and Whale Peak (and Hellhole Canyon, Culp Canyon, Tubb Canyon and Salvador Canyon)

Views of Henderson Canyon

View From the Montezuma Grade of S22 (Culp Valley, Santa Rosa Mountains, Fonts Point, Borrego Sink, Chocolate Mountains, Borrego Mountain, Algodones Dunes, Salton Sea, Picacho Peak, Cargo Muchacho Mountains)

View From Bank of Upper Palm Wash (Superstition Hills, Superstition Mountain, Sierra Cucapa Mountains, Mt. Signal, Fish Creek Mountains)

View From S22 Overlook of the Northernmost Fork of the Arroyo Salado in 2005, when it actually rained in the desert proper all season.

Views of the Santa Rosa Mountains

Road Timeline in the Borrego Desert Area


Rainfall in the Borrego Desert Area

Site information

Update Log

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Copyright © 2008-2016 by Tom Chester and Kate Harper.
Commercial rights reserved. Permission is granted to reproduce any or all of this page for individual or non-profit institutional internal use as long as credit is given to us at this source:
Comments and feedback: Tom Chester
Updated 16 December 2016.