Fig. 2. One of 128 most‐parsimonious trees of 772 steps derived from equally weighted maximum parsimony analysis of sequences of the ITS region of Bupleurum and outgroup (OG) taxa (CI = 0·58; RI = 0·85). Branch lengths are proportional to the number of substitutions (see scale bar). Numbers represent bootstrap values; values <50 % are not indicated. The letters A–I represent the same Bupleurum groups referred to in Fig. 1.