Integrating morphology, molecular phylogeny and chemotaxonomy for the most effective authentication in Chinese Rubia with insights into origin and distribution of characteristic Rubiaceae-type cyclopeptides

Xuejia Zhang, Li-E Yang, Yan‐Yun Hu, Xingdong Wu, Zhe Wang, Yuanyuan Miao, Hang Sun, Ze‐Long Nie, Ning‐Hua Tan