1. The name Pulsatilla was given by Du Fu.
2. It is said that when Du Fu, a poet of the Tang Dynasty, was trapped in Beijing, his life was extremely difficult. He often said: "The broken cup is not cold, and the sorrow is hidden everywhere." One morning, Du Fu drank a bowl of leftover porridge from two days ago. Soon he started vomiting and suffered severe abdominal pain. But he lived in a hut and was penniless, so he had no money to seek medical advice.
3. At this time, a white-haired old man happened to pass by his house. Seeing this scene, he sympathized with Du Fu very much. After asking about his condition, he said: "Please wait for a while while I collect medicine for him." You treat it." Not long after, the white-haired old man picked a handful of wild grass with white soft hair, decocted it and gave it to Du Fu. After Du Fu finished taking it, his pain slowly disappeared and he recovered after a few days. Because "self-pity is a white-headed man, no one cares about it, and pity for others is a white-headed man." Du Fu named this grass "Pulsatilla" to express his gratitude to the white-haired old man.