Identification of species and materia medica within subg. based on DNA barcodes.

is one of the most species-rich genera in the family Asteraceae, where some have a complex evolutionary history, including radiation and convergent evolution, and the identification of these species is notoriously difficult. This genus contains many plants with medical uses, and thus an objective identification method is urgently needed. subg.

Radiation of members of the complex (Asteraceae) on the Qinghai-Tibetan Plateau and their proposed taxonomic treatment.

The existence of intermediate types is a major obstacle that can hinder the circumscription of species. Elucidating the mechanism responsible for intermediate types is essential for achieving a reasonable taxonomical treatment. In this study, we explored the evolutionary history and taxonomic treatment of the (C.