carnegiea gigantea - giant cactus against a blue sky in the rock desert in organ pipe national park, arizona

ajo mountain drive arborescent arid arizona barrell cactaceae cactoideae cactus carnegiea gigantea caryophyllales cereus giganteus chain fruit cholla desert succulents dry echinocereeae engelmann 039 prickly pear eudicots ferocactus wislizenii flora hardy hot landscape learn about the park nature north america opuntia fulgida organ pipe pilocereus plant rock saguaro national sonoran spine teddy bear tree treelike usa vegetation wild wilderness nacti stenocereus thurberi