Fig. 2From: The biology of medicinal resource substitution in SalviaDistribution of 14 Salvia species. Rose red squares and green diamonds represent SMSs and nSMSs species studied in this article, respectively. Triangle, circle and pentagram represent such representative occurrence localities of each species. Clade 1–3 are the three lineages of Salvia as inferred from phylogenetic analysesBack to article page