Figure 3

Geographical distribution of ten populations of Solanum rostratum sampled from North China. (a): ten Chinese sampling populations of Solanum rostratum, the dot between YQ and YG represents there populations located in Hebei province (WSL, NZ, SLZ). (b): details with enlarged scale for the six populations located in Hebei province (WSL, NZ, SLZ) and Beijing (MY, YQ, TZ). Population names are provided in Table 1. This figure was produced using ArcGIS software version 10.1 (http://www.esrichina.com.cn/softwareproduct/ArcGIS/).