Isolation and identification of new acetylated saponin from radix and rhizome of Patrinia scabiosaefolia Flowering characteristics and pollination ecology of Scabiosa tschiliensis Chemical constituents from flowers of Scabiosa tschilliensis Two new forma of Dipsacaceae from Northeast China Tissue Culture and Plant Regeneration of Scabiosa tschiliensis Studies on chemcial constituents in Patrinia scabiosaefolia Optimization of extraction technology of total saponins from Patrinia scabiosaefolia by response surface method and its contraction effect on isolated rat intestinal smooth muscle Studies on fingerprint of Patriniae Herba Chemical constituents of Patrinia scabiosaefolia