Multiple lines of evidence supports the two varieties of Halenia elliptica (Gentianaceae) as two species
Jin-Feng Wu, Dong-Rui Jia, Rui-Juan Liu, Zhi-Li Zhou, Lin-Lin Wang, Min-Yu Chen, Li-Hua Meng, Yuan-Wen Duan
Plant Diversity . 2022, (03): 290 -299 .  DOI: 10.1016/j.pld.2021.09.004