Traits of Concomitant Communities of Rare and Endangered Plant Dayaoshania cotinifolia

Based on field investigation,the concomitant communities of Dayaoshania cotinifolia were studies.The results suggested that there were 208 species of vascular plants belonging to 147 genera and 78 families in an area of 4000 m2.The appearance traits of communities were dominated by the microphyll,herbaceous and single leaves evergreen phanerophyte.The vertical structure of communities was complex and could be divided into arbor layer,shrub layer,herb layer and interlayer plants.The inventory of seedlings was large and the replacement was good.The level of species diversity of D.cotinifolia communities was higher and the species diversity index ordered as follows: arbor layer shrub layer herb hayer.