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Saguaro


 

The saguaro (Carnegiea gigantea) is a large, tree-sized cactus species that is native to the Sonoran Desert in the southwestern United States and northern Mexico. The genus Carnegiea is a monotypic one.

References

  • Benson, Lyman The Cacti of Arizona (The University of Arizona Press, 1981) ISBN 0-8165-0509-8 - Thorough treatment of the Arizona, U.S.A., species