Flyanus is a common traditional Chinese medicine, which is slightly cold, bitter pungent in taste. It can disperse wind, clear heat, reduce gas dissolve phlegm. It is used for wind-heat cough with much phlegm, sputum hot full of asthma, sputum yellow thick.

Fructus fructus is mainly distributed in Zhejiang, Guizhou, Hunan, Sichuan, Jiangsu, Anhui other provinces. Most of them are wild only a few are cultivated, so it has great planting potential. White flowers before Hu goods, irregular cylindrical, conical spindle shape, slightly twisted, often lower branches, the surface of gray yellow, aromatic gas, taste slightly bitter.