Fouquieria splendens ssp splendensocotillo. Grown as a potted plant in Berkeley, CA. Ocotillo is generally considered as a Sonoran desert plant. Jim Andre, Director of the Sweeney Granite Mountains Desert Research Center "Ocotillo does enter the Mojave Desert, technically. It's found in the Dead Mtns (northernmost distribution in CA) and the Sacramento Mtns down through the E. Turtles, Chemeheuvi and Whipple Mtns (all technically in the Mojave)." [Thanks to _RedShoesGirl_ for the quote.]