Chi Y, Yan W, Li J
Faculty of Chinese Pharmacy, Beijing College of Traditional Chinese Medicine.
Zhongguo Zhong Yao Za Zhi. 1990 May;15(5):262-5, 317.
According to original botanical statistics, there are 42 species and 5 varieties belonging to 20 families called or used as Touguchao. Commercial investigation shows that 16 species belonging to 12 families are presently available on the market in China.
据原植物统计,有20科42种5变种被称为或用作透骨草。商业调查显示,中国市场上目前有12科16种透骨草。