What is the slow growing giant cactus of Mexico called?

The slow-growing giant cactus of Mexico is called the Saguaro cactus (Carnegiea gigantea). It is a large, tree-like cactus that is native to the Sonoran Desert in Mexico and the United States. Saguaro cacti can grow up to 40 feet tall and live for over 150 years. They have a distinctive shape with a single, thick trunk and multiple arms that branch out near the top. The Saguaro cactus is an iconic symbol of the desert Southwest and is often used in Western movies and television shows.