The traditional Chinese medicines called nine-layer skin are: 1, and the fruit shell "Eichhornia fruit shell" of the wutong plant; Seed "Eichhornia crassipes". An ancient book says, "You can only see the meat when you take it off to the ninth floor. When you eat it cooked, it tastes like chestnut.". Warming stomach and killing insects.

2. The root of the Moraceae plant, Zheshu, is called "breaking the stone", expelling wind and promoting diuresis, promoting blood circulation and dredging channels.

3. The seed of Sycamore of Sycamore family is called "Sycamore". Shunqi, stomach and digestion.

4. The bark or root bark of Ilex latifolia of Ilex is called "Ilex rotundifolia". Clearing away heat and toxic materials, promoting diuresis and relieving pain.

You should be talking about the fourth kind. Scientific name Ilex rotunda Thunb