a dry ocotillo scrub with saguaro cactus

plant nature green thorns soil cactus close dry ocotillo stems sharp saguaro sonoran desert arizona usa background surface graphic resource scrub cactus desert southwest usa arizona detail details plant cacti ridges ridged spines thorns bristles sonoran green brown columnar natural nature close-up closeup saguaros exterior photograph pattern natural patterns columns surface texture background bark environment macro rough ocotillo scrub stems spikes