Fig. 1.

Phylogenetic relationships trees of Polygonatum and Heteropolygonatum based on 78 protein-coding genes. Phylogenetic tree with branch lengths based on Maximum Likelihood Method (A). A phylogenetic tree without branch lengths, generated using both Maximum Likelihood and Bayesian Inference (B); Asterisks represent BS = 100 / PP = 1; Branches with no support value; Samples highlighted in bold were newly generated in this study. Habitat (C) and rhizome (D) of P. cyrtonema. Rhizome (E) and habitat (F) of H. binatifolium