Coptis chinensis. (Scientific name: Coptis chinensis. ), alias: William, Chuanlian and Jizhaolian, perennial herbs of Ranunculaceae and Coptis. Its leaf base is clumsy, papery, ovoid-triangular, trifoliate, the central lobe is ovoid-rhombic, pinnately parted, the edge is sharply serrated, and the lateral lobes are not equal to 2-lobed; The petiole is 5- 12cm long. Wild or cultivated in the cool, humid and cool dense forest in the valley at an altitude of 1000- 1900 m, it has the effects of clearing away heat and dampness, purging fire and detoxifying. Its taste is extremely bitter, and there is a saying that "the dumb eats coptis, and there is bitterness that can't be said", which is what the taste reveals.