It is not a kind of plant in itself, it is an annual herbaceous plant of the Asteraceae family. It grows on roadside wastelands, hillsides and fields at an altitude of 50-3100 meters. Distributed both at home and abroad. It is a commonly used folk herbal medicine in my country. The above-ground parts can be harvested during the peak flowering period in summer and autumn, the weeds can be removed, and the whole plant can be used fresh or dried in the sun. The functions of "Chinese Materia Medica" are classified into: heat-clearing and detoxifying drugs and swelling-reducing drugs. Dandelion is a perennial herbaceous plant of the Asteraceae family. There are flower heads and seeds with pompons made of white pappus. After the flowers bloom, they float to new places in the wind to give birth to new life. Dandelion plants contain dandelion alcohol, dandelion, choline, organic acids, inulin and other healthy nutrients, which have diuretic, laxative, antijaundice, choleretic and other effects. Dandelion also contains protein, fat, carbohydrates, trace elements and vitamins, etc. It has rich nutritional value and can be eaten raw, fried, and made into soup. It is a plant used both as medicine and food.