Fig. 1From: Post-glacial phylogeography and evolution of a wide-ranging highly-exploited keystone forest tree, eastern white pine (Pinus strobus) in North America: single refugium, multiple routesLocation map of 33 eastern white pine populations sampled throughout the species’ range in North America. The species’ range in represented by the shaded region on land. The full names of the populations are provided in Table 1 Back to article page