cylindropuntia and california barrel cactus, compass barrel (ferocactus cylindraceus), cacti grow on stones

cylindropuntia arborescent arid arizona cacti barrel cactus grow california compass cylindraceus desert succulents dry engelmann 039 prickly pear ferocactus acanthodes eastwoodiae wislizeni wislizenii flora hardy hot landscape nature north america plant rock scenery southeast nevada spine vegetation weather wild wilderness