Figure 1 from: Schuette S, Folk RA, Cantley JT, Martine CT (2018) The hidden Heuchera: How science Twitter uncovered a globally imperiled species in Pennsylvania, USA. PhytoKeys 96: 87-97. https://doi.org/10.3897/phytokeys.96.23667

Figure 1 Range extent of Heuchera alba and Heuchera pubescens in the Appalachian Ridge and Valley. Orange circles indicate range and location of H. alba in WV and VA; Blue circles indicate partial range and location of H. pubescens; Orange crosses represent new locations of H. alba in Pennsylvania.