Comparison of floral properties and breeding system in dimorphic Buddleja delavayi (Scrophulariaceae)
Gao Chen, Wei-Chang Gong, Jia Ge, Yang Niu, Xin Zhang, Bruce L. Dunn, and Wei-Bang Sun
J Syst Evol . 2015, (2): 196 -202 .  DOI: 10.1111/jse.12123