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The cactus is the general name of the plant of the cactus family of Dianthus. It is aliased as the fairy palm, the fairy fan, and the overlord tree. Cactus has a very rich shape and size, and has excellent water retention capacity. Most of them grow in dry and rainy environments such as deserts and semi-deserts, and can be found in all deserts on the earth. Cactus is a succulent species. Currently, the cactus family has 174 genera and more than 2,000 species. Cactus is widely used as an ornamental plant, forage or feed, and for other food sources (especially for their fruit). Carmine is a product of cochineal worms that live in certain cacti. In the face of desert water shortage and climate adaptation, the leaves of cactus degenerate into short thorns to reduce water loss, and can also be used as a weapon to prevent animals from swallowing. They have fleshy succulent stems that are the main organs of photosynthesis. Its stem evolves into a rich, watery shape with a metabolic activity of the scorpion areole and can grow a thorny leaf and produce another organ such as a stem or fruit. When the temperature is below 15 °C, the color is dull and belongs to the dormant period and must be kept dry.