Wangyoucao is a daylily that people use as a meal. Its scientific name is Hemerocallis fulva. It has been cultivated for more than two thousand years and is a unique native product of our country. According to the "Book of Songs", in ancient times, a woman planted daylilies in the north hall of her home because her husband was away on an expedition, in order to relieve her worries and forget about her busy schedule. From then on, the world called it "forgetting grass". How much this woman can forget her worries is difficult for others to know. But she loves daylily, which is really insightful. Among the sisters of the same clan in the Liliaceae family, Hemerocallis fulva is not from a famous family, but is just a "little lady". Judging from its appearance, the leaves are long and slender, and the flowers are tubular, each with 6 petals, spreading outwards. The flowers are orange in color. They usually have several flowers per bud. They bloom continuously from summer to autumn, but unfortunately they bloom in the morning and close in the evening. , thanked him in a hurry. According to flower connoisseurs, daylily has luxuriant green leaves and beautiful flowers. It exudes a kind of elegant and elegant style that is soft on the outside and strong on the inside. It makes people feel friendly and kind, and is pleasing to the eye. No wonder the ancients compared it to the voice of a loving mother. Su Dongpo once wrote: "Although the daylily flowers are tiny, they are solitary and beautiful and can extricate themselves. Among the tall and chaotic leaves, each one is inserted with heart." The "heart" he refers to refers to the mother's love. Bai Juyi also wrote a poem: "Du Kang can relieve boredom, and daylily relieves forgetfulness." He comforted Liu Yuxi, his confidant in his later years, who was repeatedly demoted. In fact, from a scientific point of view, a little nameless flower does not contain any worry-relieving elements in itself. It just helps people to transfer their emotions when viewing it, relieve a moment of boredom, and forget their worries for a moment. In the 1950s, it is said that when his beloved Comrade Dong Biwu was on official business in other places, he sent his wife He Lianzhi four sentences to comfort her: "It makes me smile with flowers, and I give you the grass of forgetfulness. Don't worry about your children, and always laugh with me when I am old." Stop worrying about housework. Looking at the mortals who often eat fireworks in the world, I am afraid that there are only a few who can be completely worry-free. What's more, there are many people with lofty ideals in the world who often worry about the fate of the country and the suffering of the people. It can be seen that we have to worry about what we should worry about, and let us forget what we should forget! Common daylilies can be divided into two categories: edible and ornamental. The edible flowers are mostly single-petaled and are specially harvested for steaming, drying and selling. They are also known as golden needles. The ornamental flowers are mostly double-petaled and are specially used for artificial potted plants or small garden scenes. The flowers of both types are relatively small. After hybridization and improvement abroad, many new varieties with large flowers have been bred. Each flower is as big as the mouth of a cup, and each scape has as many as thirty or forty flowers, which are very spectacular. In the past few years, the Guangzhou Landscape Research Institute has introduced more than 100 varieties, and the trials have been generally successful. For example, "Huang Yunshang" with yellow flowers and "Red Purple Velvet" with red flowers are unique and of great ornamental value. According to Li Shizhen's comment: "Day lily is sweet, cool and non-toxic, relieves fever, clears up gangrene, relieves the chest and relieves the mind..." It can be eaten and used as medicine. In addition to being dried, it can also be eaten fresh. The flowers are picked, cooked, and served cold with sesame oil and sauce. The taste is particularly fresh and delicious. The "Luo Han Zhai" in the Lingnan recipe contains golden needles as an ingredient, which you can't get enough of. The Longdong area of ??Gansu Province is my country's famous daylily production base, where more than 1 million kilograms of day lily needles are sold at home and abroad every year. Hemerocallis is native to southern my country. It has wide adaptability, is cold-tolerant, likes moisture, is also drought-tolerant, likes sunshine, and is also tolerant of semi-shade. It can grow in any general soil, but well-drained, fertile sandy loam is best. Forget-worn grass ㊣ˇ Hemerocallis is also known as Hemerocallis fulva, also known as Forget-worn grass. Wuzhong scholars call it healing sorrow. Ji Kang's "Treatise on Health Preservation" says: "Hemerocallis forgets worries." (from "Shu Yi Ji") Hemerocallis, one is called "Zixuan" and the other is called "Wangyoucao". Scholars in Wu called it "curing sorrow". Ji Kang's "Treatise on Health Preservation" said: "Hemerocallis fulva forgets worries."