The saguaro cactus (Carnegiea gigantea) is one of the defining plants of the Sonoran Desert. These plants are large, tree-like columnar cacti that develop branches (or arms) as they age, although some never grow arms. These arms generally bend upward and can number over 25. read more
The saguaro is the largest cactus in the United States. Most of the saguaros roots are only 4-6 inches deep and radiate out as far from the plant as it is tall. There is one deep root, or tap root that extends down into the ground more than 2 feet. read more
The saguaro cactus is a very unusual looking tree of the desert. Learn more about the saguaro cactus and see pictures from the Phoenix area. The saguaro cactus is a very unusual looking tree of the desert. read more
The saguaro (/ s ə ˈ w ɑː r oʊ /, Spanish pronunciation: [saˈɣwaɾo]) (Carnegiea gigantea) is an arborescent (tree-like) cactus species in the monotypic genus Carnegiea, which can grow to be over 40 feet (12 m) tall. read more