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Cardon cactus

    These cacti are the largest in the world and grow only in the Sonoran Desert, an ecological area located in southern Arizona and Baja California. They grow to 40 feet and more than ten tons and may live for over two hundred years. The major cause of cardon death is lightning strikes. The cactus in the foreground is a galloping cholla. The last recorded rainfall on Santa Catalina island was two years before our visit but these cacti are very healthy-looking.