The strict consensus tree constructed based on nrITS data (A), four cpDNA regions (B) and the combined nrITS and cpDNAs dataset (C). Bootstrap support values are given above branches receiving > 50% bootstrap support A The 100% strict consensus tree of 667 most maximum parsimony trees based on the analysis of nrITS data B The 100% strict consensus tree of 8 trees based on the analysis of 4 cpDNA regions C The 100% strict consensus tree of 225 trees based on analysis of combined nrITS and 4 cpDNA regions.