Floristic Characteristics of Plants in Wangjiagou Basin

It is now known that there are 241 species of plants in Wangjiagou basin,which belongs to 147 genera of 45 families.Among them there are about 1 family,1 genera,2 species in Pteridophyte and 2 families,6 genera,7 species in Gymnospermae and 42 families,140 genera,232 species in Angiospermae(39 families,107 genera,182 species in Dicotyledoneae and 3 families,33 genera,50 species in Monocotyledoneae).The herb has an advantage in the composition of life form of plants.The small families and genera and single genera have a larger quantity than the big ones.Analysis based on families and genera shows that floristic elements in the region are diversified,among which Cosmopolitan(accounting for 51.11% in total families) is dominant in the families;and temperate floristic elements(accounting for 51.02% in total genera) is dominant in genera,in which North temperate elements is the largest among the genera,which reflects the temperate characteristics of floristic elements in the basin.