Where is Polygala tenuifolia produced and distributed? An introduction to the latest situation
Polygala tenuifolia is also known as Yaorao, Jiyuan, Jiyuan, Xiaocao, Xicao, Xian'ercha, Xiaocaogen, Shenshacao, etc. Its root can be used as medicine, with the effects of calming the mind and improving intelligence, resolving phlegm, and reducing swelling. It is used for insomnia and frequent dreaming, forgetfulness and palpitations, mental, difficult expectoration, sores and swellings, breast swelling and pain, and other symptoms caused by disharmony between the heart and kidney. Now let us take a look at the production area distribution of Polygala tenuifolia!
Production area distribution of Polygala tenuifolia
The production areas of Polygala tenuifolia are mainly distributed in Hebei, Henan, Shanxi, Inner Mongolia, Shaanxi and other places, with a small amount also distributed in Shandong, Liaoning, Jilin, Ningxia, Gansu, Anhui, Jiangsu, Qinghai, Sichuan, Yunnan, Hubei and Hunan.
Production environment of Polygala tenuifolia
Polygala tenuifolia prefers a cool climate, is tolerant of drought, and avoids high temperatures. It mostly grows wild in relatively dry fields, roadsides, hillsides and other places. It is best cultivated in sunny, well-drained sandy soil, followed by clay loam and calcareous loam. Clay soil and low-lying wet areas are not suitable for planting. It grows slowly in nature, and wild resources have decreased sharply. It has been included in the third-level protected species list of the Regulations on the Protection and Administration of Wild Medicinal Material Resources.
Variety classification of Polygala tenuifolia
1. Polygala tenuifolia tube: The Polygala tenuifolia tube is tubular, hollow, twisted and not straight, 3-12 cm long, 0.3-1 cm in diameter, gray or grayish-yellow on the surface, with dense and deeply sunken transverse wrinkles all over, some with fine longitudinal stripes and small nodular root marks, brittle and easy to break, yellowish-white and relatively flat in cross-section, with a slight grassy smell, bitter and slightly pungent in taste, and a stinging throat sensation.
2. Polygala tenuifolia flesh: Polygala tenuifolia flesh is mostly broken, thin, with fewer transverse wrinkles.
3. Polygala tenuifolia stick: Polygala tenuifolia stick is also known as Polygala tenuifolia stem, Polygala tenuifolia bone, etc. It is small, with a relatively hard light yellow wooden core in the middle.