What is rhubarb in history?

Rhubarb is the general name of many perennial plants of Polygonaceae and the name of Chinese herbal medicine. In China's literature, "rhubarb" often refers to rhubarb.

Rhubarb is a commonly used medicine for clearing away heat and toxic materials, but it is called "the medicine of tiger and wolf" by doctors because of its fierce efficacy and great side effects, so it should be used with caution by the weak.