Amphiberingian plant species occur in both North America and northern Eurasia, but are not known from either Greenland or Europe. Their center of distribution generally lies within Beringia. Amphiberingian endemic species are plants that are generally restricted to Beringia in the North American part of their range (that is, they do not occur much outside of the area defined by Alaska and the Yukon Territory). For more information about biogeographic regions, download the complete report. Amphiberingian biogeography