EAST MOJAVE APRIL 2003
PAGE ONE




This was the first of the eighteen 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 Nevada plant collector Clarendon Herbert Dorr, 1816-1887]


 
White tidy tips
Layia glandulosa
Asteraceae

[Named for botanist 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


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

[Named for Danish botanist Ove Paulsen, 1874-1947]
 


 
Wrinkled spineflower
Chorizanthe corrugata
Polygonaceae




   
Woolly daisy
Eriophyllum wallacei
Asteraceae

[Named for plant collector William Allen Wallace, 1815-1893]
 

Fremont's pincushion
Chaenactis fremontii
Asteraceae

 


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