Fig. 4

Sample ordination plot of nonmetric multidimensional scaling results, based on Jaccard distance. Each point represents a specimen; point color matches specimen petal coloration. Labels designate the population location codes. No clear patterns in specimen differentiation can be found by petal coloration. Specimens within most populations demonstrate broad dispersion in the ordination space, that suggests a high level of intra-population variability. The plot is produced with R “ggplot2” package, v. 3.4.0 43.