Succulent plant (succulent plant) refers to the plant's root, stem, leaf three kinds of vegetative organs in the leaves are thick and juicy and have the function of storing a lot of water plants, also known as "pulpy plants". It has at least one kind of fleshy tissue. This tissue is a living tissue. Among other functions, it can store available water. When the soil moisture condition deteriorates and the plant root system can no longer absorb and provide the necessary water from the soil, It enables the plant to temporarily separate from the external water supply and survive independently. According to rough statistics, there are more than 10,000 species of succulents in the world, which belong to more than 100 families in classification.