Intraspecific differentiation of Pleurospermum hookeri (Apiaceae), and its interspecific relationships with two close relatives in the genus Pleurospermum
Xue Bai, Xiang-Guang Ma, Yun-Dong Gao, Cai Zhao, Xing-Jin He
J Syst Evol . 2015, (4): 308 -320 .  DOI: 10.1111/jse.12144