Astragalus, as the largest genus of flowering plants, is well-known for its high species richness and morphological diversity. Previous studies suggested that many subgenera Astragalus are not monophyletic phylogenetic relationships within still poorly known. In this study, we sampled 117 accessions close relatives, covering 55 sections plus 30 outgroup taxa to recover main clades eastern Asian...

One new, 3-O-[[[-alpha-L-rhamnopyranosyl-(1-->2)]-[beta-D-glucopyranosyl-(1-->3)]-beta-D-glucopyranosyl-(1-->2)]-beta-D-glucuronopyranosyl]-3beta,22alpha,24-trihydroxyolean-12-ene and two known triterpenoid saponins, 3-O-[[alpha-L-rhamnopyranosyl-(1-->2)]-[beta-D-glucopyranosyl-(1-->2)]-beta-D-glucuronopyranosyl]-3beta,22beta,24-trihydroxyolean-12-ene (azukisaponin V) and 3,16-di-O-beta-D-gluco...