ABSTRACT
This herb is the dried trunk bark of Eucommia ulmoides Oliv. of the family Eucommiaceae. It is mainly grown in the Guizhou, Hubei, Sichuan, and Yunnan provinces of China. The bark is stripped off the tree between April and June, then dried in the sun after the cork has been removed, and cut into pieces. It is used unprocessed or stir baked with saltwater and dried (Jiang Su New Medical College, 1977). Eucommia bark is also known as mu mian (cotton tree), which refers to the fact that if the bark is broken and the fractured edges drawn asunder, a delicate, silvery, silky fiber may be pulled out for several inches without breaking (Wang, 1994). https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203050040/86743b54-459f-4502-a9f1-33f21b13726a/content/figpg167_001_B.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
