What is the most bitter plant in the world?

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 cannot be said", that is, the taste is revealed.

The effects of clearing heat and promoting diuresis, purging fire and detoxifying. Can be used for treating fullness due to damp heat, vomiting, acid swallowing, diarrhea, jaundice, high fever and dizziness, hyperactivity of heart fire, insomnia, vomiting due to blood heat, toothache with red eyes, thirst quenching, carbuncle and furuncle; Externally used to treat eczema, wet sores and pus in ear canal. Wine coptis is better than clearing fire. It is used for treating aphtha with red eyes. Turmeric even clears the stomach and stops vomiting. For cold and heat, damp-heat obstruction, fullness and vomiting. Yuhuanglian soothes the liver and stomach to stop vomiting. It is used for disharmony between liver and stomach, vomiting and acid swallowing, and is suitable for patients with epigastric insufficiency, vomiting and nausea, diarrhea due to spleen deficiency and diarrhea due to five changes of kidney. Medical contraindications are bitter and cold, and long-term use is easy to damage the spleen and stomach. It is forbidden for people with spleen and stomach deficiency and cold. Bitter dryness impairs body fluid, and people with yin deficiency and body fluid deficiency should use it with caution.