MOJAVE NATIONAL PRESERVE APRIL 2015
PAGE ONE
Photographs by Michael Charters




2015 has not been a very good year for flora. Nevertheless, out in the Mojave National Preserve (which is actually the central Mojave Desert), thanks to the knowledge, experience and scouting skills of our Jepson workshop leaders Jim Andre and Tasha La Doux, we were able to find and enjoy a great many species in bloom and many rare plants. We did have to do a bit more driving than has been customary on most other workshops I've attended (15 now) but it was totally worth it. The scenery in the East Mojave alone is spectacular. We were extremely fortunate to have with us for the entire workshop Ronald B. Kelley, the main author for the family Boraginaceae in the Jepson Manual, 2nd edition, and a person who has spent countless hours in the field over a wide geographic area studying such genera as Cryptantha, Pectocarya, Plagiobothrys, and Amsinckia, and has a deep understanding of these and many other genera. We were blessed with good weather, cool though windy nights, and sunny days with temperatures in the 70's and low 80's. I was pleased to see some old friends and make some new ones, and there were even three dogs to help me not miss mine so much. The Sweeney Granite Mountains Desert Research Center managed by Jim and Tasha is about 80 miles east of Barstow just off I-40. In addition to several hours spent before the group meet on Thursday, I took several hours Sunday afternoon to drive up through the Reserve, stopping about a dozen places to see some species that we had not encountered during the workshop. An upside-down V next to the common name indicates a taxon that was new to me on this field trip, while an asterisk is for a non-native species.


   
Rayless encelia
Encelia frutescens
Asteraceae


 
Brittle spineflower
Chorizanthe brevicornu var. brevicornu
Polygonaceae


 
Spanish needles
Palafoxia arida var. arida
Asteraceae
[Named after José Rebolledo de Palafox y Melzi, 1776-1847]
 
 
 
Green encelia
Encelia virginensis
Asteraceae


   
Schott's calico
Loeseliastrum schottii
Polemoniaceae



 
 
 
Mojave-aster
Xylorhiza tortifolia var. tortifolia
Asteraceae
 
 



 
Desert zygadene
Toxicoscordion brevibracteatum
Melanthiaceae


Small wirelettuce
Stephanomeria exigua ssp. exigua
Asteraceae
 
 
     
Chia
Salvia columbariae
Lamiaceae


   
Paperbag bush, Bladder sage
Scutellaria mexicana
Lamiaceae



   
Desert bluebells
Phacelia campanularia ssp. vasiformis
Boraginaceae



 
Pencil cholla
Cylindropuntia ramosissima
Cactaceae



 
Cheesebush
Ambrosia salsola var. salsola
Asteraceae
   
Woolly daisy
Eriophyllum wallacei
Asteraceae

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


 
Desert mistletoe
Phoradendron californicum
Viscaceae


   
Nevada ephedra
Ephedra nevadensis
Ephedraceae


 
Checker fiddleneck
Amsinckia tessellata var. tessellata
Boraginaceae



 
 
Beavertail cactus
Opuntia basilaris var. basilaris
Cactaceae

 
California barrel cactus
Ferocactus cylindraceus
Cactaceae
 


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