Aristolochia is a perennial herb in the Aristolochiaceae family. The whole herb is used as medicine. Containing a variety of volatile oils, mainly methyl eugenol, methyl piperol, eugenol, safrole, paiene, lobster brain, fine Xinxinone and so on. It is pungent in flavor and warm in nature. It has the function of dispelling wind and dispersing cold, opening up the orifices and relieving pain. Mainly treats wind-cold headache, rhinitis, toothache, phlegm cough, asthma, rheumatic paralysis and other diseases. Mainly produced in the northeast three provinces, to Liaoning Province, Benxi, Kuandian, Fengcheng, Xinbin, Huanren, Xiuyan and other places of production, quality, sales and exports. 5 ~ 6 years harvest.

In addition to Liao xinxing, there are Hua xinxing distributed in Shaanxi, Shandong, Zhejiang and other places, Seoul xinxing distributed in the northeast. They are all used for medicinal purposes. Liao xin is the main cultivated species.

Liaoxin prefers cool, shady and humid climate, and is hardy. The soil is moist and favorable for growth. Suitable for growth in the forest with some shade, loose fertile sandy loam or humus soil. Propagation by seed.