Abstract:Scabiosa tschiliensis Grünning, a perennial herb, belonging to the family Dipsacaceae, is mainly distributed in grasslands of northern China. It is an important medicinal plant in Mongolian medicine. In this paper, we examined the flowering dynamics, outcrossing index (OCI), pollen-ovule ratio (P/O), pollen viability, pistil recipient phase and pollination ecology of Scabiosa tschiliensis at Inner Mengolia Grassland Ecosystem Research Station (43°26′~44°08′N, 116°04′~117°05′E). The main results are as follo...