Arizona Chalk Dudleya
Dudleya arizonica
Synonym: Dudleya pulverulenta ssp. arizonica
Arizona chalk dudleya on granitic substrate on the canyon walls of Hornblende Canyon about one mile upstream from San Diego County Route S-2, Anza-Borrego Desert State Park.........March 26, 2011.
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Arizona chalk dudleya on horneblende substrates on the canyon walls of Hornblende Canyon about one mile upstream from San Diego County Route S-2, Anza-Borrego Desert State Park.........March 26, 2011.
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Arizona chalk dudleya on horneblende substrates on the canyon walls of Hornblende Canyon about one mile upstream from San Diego County Route S-2, Anza-Borrego Desert State Park.........March 29, 2006.
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Arizona chalk dudleya observed at the base of barrel cactus (Ferocactus cylindraceus) on the walls of the wash at Indian Gorge, Anza-Borrego Desert State Park, CA......March 22, 2005.
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Arizona chalk dudleya as seen on rock outcrops in Rainbow Canyon, located on the north side of Highway S-2 at about MP 27.6, Anza-Borrego Desert State Park, CA..........March 30, 2006.
Paul Slichter