1. Committee for Flora of China of Chinese Academy of Sciences, Flora of China (Zhongguo Zhiwu Zhi), Science Press, Beijing, Vol. 35 (S), 1995, pp. 201–258.
2. S. Nakamura, Z. Wang, F. M. Xu, H. Matsuda, L. J. Wu, and M. Yoshikawa, Tetrahedron Lett., 50, 4639 (2009).
3. E. Kesumawati, M. Hosokawa, T. Kimata, T. Uemachi, and S. Yazawa, Sci. Hortic. (Amsterdam), 121, 199 (2009).
4. B. Z. Ding and S. Y. Wang, Flora of Henan (Henan Zhiwu Zhi), Henan Science & Technology Press, Zhengzhou, 1997, p. 99.
5. A. Ishih, C. Ikeya, M. Yanoh, H. Takezoe, T. Miyase, and M. Terada, Parasitol. Int., 50, 33 (2001).