青海省野生蔷薇科植物资源丰富,共有26属102种22变种1变型,分析了植物区系特点,对观赏价值较高的21属68种2变种1变型的生境和观赏特性进行了分析,并对野生植物资源的园林应用进行了评价。结果表明:温带成分占绝对优势,占总属数的80.8%。观赏价值较高的植物中,木本植物有17属62种1变种1变型;叶形多样;花色丰富,以白色、红色和黄色系为主,其中以白色系居多;有单花和各种花序类型;果实有蓇葖果、梨果、核果和瘦果;果色有红色、白色、黑色、黄色。 There are 26 species, 102 species, 22 varieties and 1 variations in the genus Rosaceae in Qinghai Province. The characteristics of flora were analyzed. The habitat and ornamental characteristics of 68 species and 2 varieties of 21 genera with high ornamental value were analyzed. The landscape application of wild plant resources was evaluated. The results showed that the temperate components accounted for the absolute advantage, accounting for 80.8% of the total genera. Among the plants with higher ornamental value, there are 17 genera, 62 species, 1 species and 1 variation in woody plants; the leaf shape is diverse; the color is rich; the white, red and yellow lines are the major ones, of which white is the most; Inflorescence type; fruits with 蓇 葖 fruit, pear fruit, stone fruit and achenes; fruit color is red, white, black, yellow.