1. Flora of China, Vol. 57, Science Press, Beijing, 1999, p. 180.
2. Drug Standard of Ministry of Public Health of the Peoples Republic of China, People′s Medical Publishing House, Beijing, 1995, p. 78.
3. Jing Zhu Materia Medica, Shanghai Science and Technology Press, Shanghai, 2012, p. 115.
4. K. Yang, Y. X. Zhou, C. F. Wang, S. S. Du, Z. W. Deng, Q. Z. Liu, and Z. L. Liu, Molecules, 16, 7320 (2011).
5. P. H. Bai, C. Q. Bai, Q. Z. Liu, S. S. Du, and Z. L. Liu, J. Biosci., 68, 307 (2013).