Fig 4. BEAST–derived phylogenetic relationships of 23 plastid haplotypes (C1–C23), divergence dating and ancestral area reconstruction of Libanotis buchtormensis.

Pie Charts with colors indicate the proportion of the ancestral ranges based on RASP analysis. The red lines and blue lines indicate the vicariance and long–distance dispersal events, respectively. The insert map shows the five major distribution areas (A–E) of L. buchtormensis in China.