Fig. 2From: Phylogeography of Begonia luzhaiensis suggests both natural and anthropogenic causes for the marked population genetic structureSampling sites and leaf variation of Begonia luzhaiensis. Dash lines demarcate Liu et al. (2001)’s classification of Guangxi’s karst landforms: (I) karst plain, (II) Fenglin plain, and (III) Fengcong depression. Scale bar = 5 cmBack to article page