Two species of the Rhodiola yunnanensis species complex distributed around the Sichuan Basin of China: Speciation in a ring?
Zi‐Meng Wang, Shi‐Yong Meng, and Guang‐Yuan Rao
J Syst Evol . 2022, (5): 1092 -1108 .  DOI: 10.1111/jse.12754