FIGURE 2 in A new species of the Centaurea busambarensis complex (Asteraceae) from the Nebrodi Mountains in Sicily (Central Mediterranean region)

FIGURE 2. Principal component analysis based on the 19 continuous morphological characters, with groups corresponding to the 19 studied populations. PC1: eigenvalue 0.2261, % variance 35.24; PC2: eigenvalue 0.113, % variance 17.59.