Abstract:Seventeen phenotypic traits were investigated in 226 individuals of 11 natural populations of Cerasus campanulata from Fujian，Jiangxi and Guangdong, China, using coefficients of variation，F-test of One-way variance analysis，correlation analysis and clustering analysis．The variation was much greater within populations than among populations, which suggested that little differentiation occurred among populations．Among 17 phenotypic traits, flower color, the number of flowers per plant were significantly correlated to both longitude and latitude，petal width to both longitude and altitude，flower color，the number of flowers per plant to annual rainfall，the number of flowers per plant，petal width，flowering habit to hours of sunshine，and petal width to both annual mean temperature and the frost-free period．There was significant relationship between geographic distances and Mahalanobis distances calculated from all phenotypic traits．