Post Doctor

Plant taxonomy, Biodiversity


2009-2013, BSc, Beijing Normal University, China

2013-2016, Master,Beijing Normal University, China

2016-2019, Ph.D., Beijing Normal University, China

2019-present, Postdoc., Beijing Normal University, China


Research Interests

1. Taxonomy of Boraginaceae species (Onosma) in China and Pan-Himalaya regions;

2. The distribution of PAs (pyrrolizidine alkaloids) in Boraginaceae species and its chemotaxonomic significance;

3. Flora of northern China


Selected Publications

♦ Research Articles

1. Yi He, Danhui Liu, Kai Wu, Tiran Huang, Quanru Liu*. The identity of Onosma liui (Boraginaceae) from Sichuan, China. Phytotaxa. 395 (1): 041–047. 2019;

2. Yi He, Jiachen Hao, Quanru Liu*. Onosma dolichoutum W.T. Wang (Boraginaceae), a new synonym of O. bracteatum Wall. Phytotaxa 344 (3): 287–290. 2018;

3. Yi He, Jiachen Hao, Latif Ahmad, Quanru Liu*. Onosma lhokaensis (Boraginaceae), a new species from Xizang, China. Nordic Journal of Botany. 36 (6): njb-01770. 2018;

4. Latif Ahmad, Yi He, Jiachen Hao, Andrew Semotiuk, Quanru Liu*, Paras Mazari. Toxic pyrrolizidine alkaloids provide a warning sign to overuse of the ethnomedicine Arnebia benthamii. Journal of Ethnopharmacology. 210 (2018): 88–94. 2018;

5. Latif Ahmad, Yi He, Andrew Semotiuk, Quanru Liu*. Qualitative determination of toxic pyrrolizidine alkaloids in Trichodesma indicum: A prevalent ethnomedicine of Northern Pakistan. Journal of Complementary Medicine Research. 9 (1): 11–23. 2018;

6. Latif Ahmad, Yi He, Andrew Semotiuk, Quanru Liu*, Jiachen Hao. Survey of pyrrolizidine alkaloids in the tribe Lithospermeae (Boraginaceae) from Pan-Himalaya and their chemotaxonomic significance. Biochemical Systematics and Ecology. 81 (2018): 49–57. 2018;

7. Latif Ahmad, Yi He, Andrew Semotiuk, Quanru Liu*, Hammad Ahmad Jan. Pan-Himalaya ethnomedicine safety: Lithospermeae (Boraginaceae) herbal remedies containing toxic pyrrolizidine alkaloids. Journal of Complementary Medicine Research. 10 (3): 129–141. 2019;


Contact Information

College of Life Sciences,

Beijing Normal University,

Beijing 100875,

P. R. China

Tel. : +86-15210849742