The saguaro takes a century to branch out

The saguaro (Carnegiea gigantea) is the imposing cactus that gave its name to the Saguaro National Park in Arizona. It must wait between 75 and 100 years for its main stem to start branching and give it its characteristic western silhouette. This emblem of Arizona finally reaches a height of nearly 15 meters and a weight of 8 tons at the end of its growth.