Figure 1 from: Takano A (2017) Taxonomic study on Japanese Salvia (Lamiaceae): Phylogenetic position of S. akiensis, and polyphyletic nature of S. lutescens var. intermedia. PhytoKeys 80: 87-104. https://doi.org/10.3897/phytokeys.80.11611

Figure 1 - Map of Japan shows the sites where Salvia lutescens taxa were sampled. Open circle = var. crenata, filled circle = var. intermedia, open square = var. lutescens, filled square = var. stolonifera. The areas encircled with dotted lines show the Kinki and Kanto regions, as indicated.