Varietal distances were measured by Mahalanobis's D 2 statistics in 190 possible comparisons among twenty varieties of Prunus mume with twelve characters such as seed weight, length, width, and diameter, fruit weight, and number of sepals, petals, pistils, and stigmas, and leaf length and width. A complete linkage cluster analysis based on the Mahalanobis's distance (D 2) was attempt. Twenty varieties of Prunus mume were largely classified into five subgroups. Group Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅴ included two, four, five, five and four varieties, respectively. Most of the varietal groups were not associated with their geographical origins. Number of stigmas, and leaf length and width among the twelve characters were the largest contributors to the D 2 in both intra-and inter groups.

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