The Giant Mexican Cardon; is considered the tallest cactus species in the world. These massive cacti can grow over 60 feet tall and are known for their exceptionally long lives. In fact, some large, closeup of an old man cactus, white hairy coated cactus, Endangered plant specie from mexico Stock Photo Alamy WALA Arnica Cactus comp., Globuli velati 20 g Cactus Trio Wearing Cowboy Hats The Green Head