The Saguaro system is a research area focused on studying and understanding the ecology and biology of the iconic saguaro cactus (Carnegiea gigantea) in the Sonoran Desert of the southwestern United States and northwestern Mexico. This research area encompasses various aspects of the saguaro's life cycle, habitat requirements, interactions with other species, and responses to environmental factors such as climate change and human disturbances. Researchers in the Saguaro system seek to gain insights into the conservation and management of this important species and its unique desert ecosystem.