| Fenghuang Mountains lies in Liaodong mountain area, whose plant flora belongs to thetransitional zone between Changbai flora and Huabei flora, and the compositions of plantflora are very complicated and rich. The seed plants with 434 genera are divided into 15distribution types in Fenghuang Mountain reserve. There are the compositions of the NorthTemperate Zone with 149 genera in 38.80% and 405 species in 52.19%, which are the most inthe 15 types, and tropical compositions with 54 genera in 14.06% and 94 species in 12.11%.The plant flora reflects the distinctive characteristics of the temperate zone and little tropicalones. According to Drude's life-form system, the seed plants can be divided into barber, shrub,vine, perennial herbaceous plant, biennial herbaceous plant and annual herbaceous plant inFenghuang Mountain reserve. The herbaceous plants with 745 species in 76.17% aredominant, and the barber and vine are less, which shows the distinctive characteristics ofvegetations in the North Temperate Zone.According to Raunkiear's life-form spectrum of life-form system, micryptophytes are thedominant, followed by the geocryptophytes in Fenghuang Mountains. There are only fewmacrophanerophytes whose buds are above more than 25cm. That shows the characteristics ofthe climate in middle latitude, which are rainy and warm in summer,and frigid and dry inwinter in the forest region of the temperate zone of China.The species diversity is the largest in herb layer and is the least in barber layer in the fourtypical plant communities, which is Pinus tabulaeformis forest, Manchurian walnut forest,Querqus mongolica forest and broad-leaves mixed forest. The species diversity ofbroad-leaves mixed forest is the largest in all arbor layers, and so is that of Querqusmongolica forest in all shrub layers.
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