Flora of Seed Plants in the Qingyazhai Nature Reserve,Hebei

Qingyazhai Nature Reserve belonging to the southern section of Taihang Ranges,is located in the southwest of Hebei.There are 686 species of wild seed plants,belonging to 90 families and 354 genera in the area.There are 13 families including more than 15 species,there are 16 dominant genera including more than 5 species.Analysis on the floristics shows that the geographic compositions are complex,having 66 various tropic genera(accounting for 21.02 % in the total genera),240 various temporate genera(accounting for 76.44 %),and having 8 endemic to China genera(accounting for 2.55 %).It shows obvious temporate zone character istics,and has relationship with tropic zone during origion,and with relatively rich endemic plants and ancient characteristics.The flora in this region is composed of hemicryptophytes mainly,and relatively few phanerophytes.The result shows the flora has the feature of Huabei flora,and has representativeness to some extent in Taihang Mountains.