Xuancao, that is, yellow cauliflower, the ancients also called it forgetfulness grass. "Poetry Sutra, Wei Feng, Boxi": "Yan Dechen (TongXuan) grass, the back of the tree? "It is said that a woman's husband went on an expedition and was at home north

Xuancao, that is, yellow cauliflower, the ancients also called it forgetfulness grass. "Poetry Sutra, Wei Feng, Boxi": "Yan Dechen (TongXuan) grass, the back of the tree? It is said that a woman's husband went on an expedition, so she planted Xuancao in the north hall of the home to relieve her worries and forget her worries, and from then on the world called Xuancao "forgetful grass". Mao Chuan: "The grass is forgetful. Back, North Hall also. "The north hall, that is, the main house, the room where the old mother lives, so the north hall represents the mother. Ji Kang's "Theory of Health Maintenance": "Acacia is angry, The grass is forgotten, and the foolish wisdom knows it." Therefore, Xuancao can forget worries, and represents maternal love, which is the mother flower of China. The Tang Dynasty Mengjiao's "Wandering Son" said: "Xuancao shengtang steps, wandering children travel to the end of the world; the loving mother leans on the door hall, and does not see Xuancao flowers." Song Dynasty Wang Shipeng 'Xuancao' said: "There are guests who see Xuancao and regret traveling for life." Empty of people, no solution to forget worries. He said that although Xuancao can make people forget their worries, but he left home in his early years and did not do filial piety for his mother, how can this endless regret make people forget their worries? The theme song of the movie "Hello, Li Huanying" directed by Jia Ling is "Xuancao Flower", which expresses her concern for her mother.