Fig. 7From: Actualized inventory of medicinal plants used in traditional medicine in Oaxaca, MexicoA hierarchical classification analysis (HCA) using Ward’s method on the Euclidean distance matrix was followed. Groupings obtained from the HCA were graphically evaluated with principal component analysis (PCA) on a correlation matrix (PAST 4.01).The first two axes of the PCA explained approximately 97% of the variance.Back to article page