Fig. 5

The plastome CDS-based phylogenetic tree constructed by Bayesian inference (BI) and maximum likelihood (ML) with the posterior probabilities (PP) of BI and the bootstrap values (BS) of ML above the branches. The topology of the tree is derived from the optimal tree of the maximum likelihood method, and the unaligned tree is labeled in the upper left corner. Respectively, (*) represents maximum support in both two analyses, (#) represents those nodes not occurring in the BI strict consensus tree. The red is the newly sequenced Libanotis in this study, and the orange is the Libanotis sequences downloaded from Genebank. Different subclades are colored differently. Details of the sections labeled with different symbols are shown in Table 1