Stock photography, photos: Saguaro Cactus - Tucson, Arizona Stock photos of Saguaro cactus (Carnegiea gigantea) in the Saguaro National Park. Sonoran Desert. Tucson, Arizona. National Park - USA. Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: usa, arizona, southwest, west, cactus, saguaro, Carnegiea gigantea, desert, sonoran, tucson