The hometown of cactus is Mexico, where there are more than 1000 kinds of cactus. It is said that there are more than 2000 kinds of cactus in the world. Because they live in the desert and dry land, in order to reduce the loss of water, the leaves of cactus gradually evolved into thorns, and the stems evolved into palms. The water is stored in the fleshy stems. There is a layer of hard skin on the body surface, which protects the fleshy stems like steel armor, thus forming the unique shape of cactus. Cactus is not only for viewing, but also for many purposes. The tender stems can be made into delicious cold dishes; Scrape the skin and mash the stem to apply to the swelling part of the body to reduce swelling; The dried cactus can be used as fuel and building materials. In the hot and dry weather, other plants could not bear the heat and drought and lowered their heads, while the cactus looked up at the blue sky like a warrior. Its branches and trunks of different shapes stand tenaciously in the heat and stretch proudly in the wind and sand, bringing green vitality to the vast sand sea. Cactus population. Taken in Sanya, Hainan in December 2022. (Photographed by Jiang Wuyi/Guangming) The plush cactus is very unique. Taken in Sanya, Hainan in January 2023. (Photographed by Jiang Wuyi/Bright picture) Tree cactus. Taken in Sanya, Hainan in December 2022. (Photographed by Jiang Wuyi/Bright picture) Golden cactus are rare. Taken in Sanya, Hainan Province in January 2023. (Photo by Jiang Wuyi/Guangming) The cactus in front of the house is very tall. Taken in Sanya, Hainan Province in December 2022. (Photographed by Jiang Wuyi/Bright picture) Cactus outside the window. Taken in Sanya, Hainan Province in December 2022. (Photographed by Jiang Wuyi/Bright picture) Cactus grow in clumps. Taken in Sanya, Hainan in January 2023. (Photographed by Jiang Wuyi/Bright picture) Compare who is higher. Taken in Sanya, Hainan in December 2022. (Photographed by Jiang Wuyi/Bright picture) Spherical cactus. Taken in Sanya, Hainan Province in December 2022. (Photographed by Jiang Wuyi/Guangming)