large, unusually d saguaro cactus in a desert landscape with prickly pear, ocotillo and palo verde bushes in arizona

saguaro national park tucson mountain district arizona usa botany nature cacti vegetation outdoors spring landscape desert tourism travel adventure vacation sight solitude peaceful hiking harsh environment ecosystem rugged bucket list west america rocky blue sky wispy clouds carnegiea gigantea ocotilla fouquieria splendens prickly pear opuntia pima county sus picnic area palo verde large unusual shape trail dirt path unusually shaped cactus ocotillo bushes par