Backlit desert landscape, Saguaro National Park, Tucson, Arizona, USA
Giant Saguaro Cactus (Carnegiea gigantea), Saguaro National Park, Tucson, Arizona
Saguaro and Wislizenus' Senna aka: Shrubby Senna, Shrubby Cassia (Senna wislizeni), in full bloom, Santa Catalina Mountains, Tucson, Arizona
