Arizona Flora is composed of a variety of plants, including SAGUAROS and CACTI. SAGUAROS are large, columnar CACTI that can grow up to 40 feet tall and live for hundreds of years. They are native to the Sonoran Desert in Arizona, as well as parts of California and Mexico. CACTI are succulent plants that have adapted to survive in dry climates. They are characterized by their thick stems and spines, which help them store water and protect them from predators. Arizona is home to a wide variety of CACTI, including barrel CACTI, prickly pears, and chollas.