JEPSON WORKSHOP: MOJAVE NATIONAL PRESERVE
APRIL 2003 PAGE ONE
Photographs by Michael Charters




This was the first of the twenty Jepson workshops I have taken, and we were very fortunate that it was led by Bruce Baldwin from Berkeley with the able assistance of Jim Andre of the Sweeney Granite Mountains Desert Research Center, located just north of the 1-40 on Kelbaker Road. The Mojave National Preserve is a spectacular land of volcanic cinder cones, sand dunes, mountains and canyons, forests of joshua trees, and fields of wildflowers when there has been sufficient rain. The California Desert Protection Act of 1994 created the Preserve, and of its 1,600,000 acres, approximately 695,200 are designated as a Wilderness Area. About 25% of its average 3-5 inches of annual rainfall are produced by summer monsoonal thunderstorms. The highest point of the Preserve is the summit of Clark Mountain at 7,929' and the lowest is about 880' near Baker. An asterisk next to the common name indicates a non-native species.


   
Blue sage
Salvia dorrii var. pilosa
Lamiaceae
[Named for Clarendon Herbert Dorr, 1816-1887]


 
White tidy tips
Layia glandulosa
Asteraceae

[Named for George Tradescant Lay, 1799-1845]


 
Banana yucca
Yucca baccata var. baccata
Agavaceae
 
 
 
Acton encelia
Encelia actoni
Asteraceae


 
Borrego milkvetch
Astragalus lentiginosus var. borreganus
Fabaceae



 
 
 
Black-banded rabbitbrush
Ericameria paniculata
Asteraceae
 
 



   
Beavertail cactus
Opuntia basilaris var. basilaris
Cactaceae



 
 
Blackbrush
Coleogyne ramosissima
Asteraceae
 
 



     
Woolly marigold
Baileya pleniradiata
Asteraceae
[Named for Jacob Whitman Bailey, 1811-1857]


 
Bladderpod
Peritoma arborea var. arborea
Cleomaceae
   
Barbwire Russian thistle *
Salsola paulsenii
Chenopodiaceae

[Named for Ove Paulsen, 1874-1947]
 


 
Wrinkled spineflower
Chorizanthe corrugata
Polygonaceae




   
Woolly daisy
Eriophyllum wallacei
Asteraceae

[Named for William Allen Wallace, 1815-1893]
 

Goldenheads
Acamptopappus sphaerocephalus var. sphaerocephalus
Asteraceae



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INDEX
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OF SEVEN
CALIFORNIA PLANT NAMES: LATIN AND GREEK MEANINGS AND DERIVATIONS
VIRGINIA PLANT NAMES: LATIN AND GREEK MEANINGS AND DERIVATIONS

Copyright © 2018 by Michael L. Charters.
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Comments and/or questions may be addressed to: mmlcharters[at]calflora.net.