Mt. Dabie is situated in the area where the boundaries of three provinces (Anhui, Hubei, Henan)meet. Its summit of the highest peak(31~044'N, 106~022'E, Alt. 1774m)lies in Anhui. The northern part of Mr. Dabie in Anhui is the main part of the whole mountain and encompasses Jinzhai County, Huoshan County, and part of Shucheng County.Since this region is located at the transitional area between subtropic zone and warm temperate zone and at the confluence of three floristic provinces(E. China, C. China, N. China), the flora of this region is comparatively rich and varied in species. According to the preliminary statistics, the vascular flora comprises 1477 spp. (incl. ssp. and var. ) in 648 genera and 173 families. Of these, there are about 1380 species of seed plants, belonging to 595 gen. and 146 fam. In the 595 genera, there are 28 world monotypic genera, 77 oligotypic genera and 16 endemic Chinese genera. Most of them are phylogenetically ancient or primitive.The basic floristic features of this region are briefly summarized as follows: 1) The floristic elements are comparatively rich; 2) There are many ancient and relic elements in this region; 3)There are less endemics in this region; 4)The flora shows more obvious transition.The geographical distribution of seed plants of this region can be divided into 15 types., as follows Cosmopolitan (62 genera); Pantropical(97); Discontinuous between tropical America and tropical Asia(8); Old-world's tropical(20); Tropical Asia to tropical Oceania(17); Tropical Asia to tropical Africa(13);Tropical Asia (22); North temperate(131); Discontinuos between E. Asia and N. America (54); Eurasia temperate(46); Temperate Asia(11); Mediterranean, W. Asia to C. Asia (2); C. Asia (1); E. Asia(95); Endemic to China (16). Based on the geographical elements of this region, the genera of temperate and subtropic distributional patterns make up 66.8%, and the genera of tropics 33.2%.