Wild Phellinus linteus is a kind of Phellinus linteus growing on mulberry trees, and its resources are extremely scarce at present. Real wild Phellinus igniarius can be boiled in water or made into powder.

Because wild Phellinus igniarius contains more water-insoluble flavonoids and triterpenoids (boiling water can't be cooked), it is suggested to break the wall at room temperature and take it with warm water, especially for tumor patients in the recovery period after operation.