The Evaluation of Wild Ornamental Grass Resources in Yunnan Province

Based on the investigating of wild ornamental grass resources in Yunnan Province,the 162 species were evaluated and analyzed comprehensively by grey-correlation analysis with the characters of habitat,fastness,ornamental value,leaf color and inflorescence.The results showed that the correlation degree with the ideal species of 121 in the 162 ornamental grass was higher than 0.6,these species had the potential to development and utilization;39 species was higher than 0.7 in the correlation degree with the ideal species,these species had higher comprehensive evaluation,they can be utilization in landscaping directly;there were 8 species was higher than 0.8 in the correlation degree with the ideal species;Setaria palmifolia,Saccharum fallax and Erianthus longisetosus can be regarded as ideal ornamental grass,for which had the correlation degree with the ideal species was higher than 0.9.