13 main ornamental characters of 20 species of Rhododendron were determined in "One Hundred Li Range of Rhododendron" Forest Area in Guizhou, The intergrated evaluation on 20 species of Rhododendon was conducted by using Fuzzy Similarity Priority Ratio method. The results indicated that 10 species, such as R. agastum, owned high ornamental value, which should be wide...