Fig. 2From: Phenotypic variation of floral organs in flowering crabapples and its taxonomic significancePearson correlation analysis of Malus floral phenotypic traits. The circle marked with ‘×’ represents that the correlation index between phenotypic traits of floral organs is over 0.80 (r > 0.80). For these highly relevant traits, we opted to choose either one of the two traits when classifying the taxaBack to article page