The Saguaro, pronounced "sah-wah-roh", (Carnegiea gigantea) is a large, tree-sized cactus species in the monotypic genus Carnegiea. It is native to the Sonoran Desert in Arizona, the Mexican states of Sonora and Baja California, and an extremely small area of California. The saguaro blossom is the state flower of Arizona. The common name of the cactus, saguaro, is a Spanish-language adaptation of a word used by a local aboriginal American nation, the Tohono O'odham, for the plant. Local English… (More on Carnegiea)