Phylogenetic principal component analysis (PCA) plot, based on individual values for 20 traits measured in 14 populations of Sonchus oleraceus from the native (Europe and North Africa, blue triangles) and introduced (Australia and New Zealand, orange circles) ranges. The 95% confidence ellipses, defined by the centre of gravity of each range, are represented. The first two components account for 34.53% of the total variance. On the right, is presented the correlation circle on the 20 variables represented by the two principal components (HeightFstBud: vegetative height at first bud, HeightShoot: total shoot height, Biomass: biomass, SLA: SLA, LDMC.Bas: LDMC of basal leaf, LDMC.caul: LDMC of cauline leaf, Thickness: leaf thickness, NbLeaves: number of leaves, SDMC: SDMC, CN.leaves: C:N ratio of leaves, CN.seeds: C:N ratio of seeds, GermRt3: rate of germination at three days, GermRt6: rate of germination at six days, NbFlow: number of flower heads, NbSeeds: number of seeds, DispWind: seed dispersal window, SeedMass: seed mass, DaysToBud: number of days to bud formation, DaysToFlow: number of days to flowering, Trchm: leaf trichome density).