Included here is an extensive belt across Canada and Alaska south of the Arctic BioProvince but excluding the Rocky Mountains. In the south it includes most of the US state of Maine and the northern parts of Vermont, Michigan and Minnesota.
Of the endemic vascular and near endmic vascular plants so far recorded there are 48 species in 31 genera and 13 families but no endemic genera.
Cannings, S., Anions, M., Rainer, R. & Stein. B. 2005. Our Home and Native Land: Canadian Species of Global Conservation Concern. NatureServe Canada: Ottawa, Ontario.
Jonker, P. M. & Rowe, J. S. 2001. The Sand Dunes of Lake Athabasca. University Extension Press. University of Saskatchewan.
Mallik, A. U. & Robertson, S. 1998. Floristic composition and diversity of an old-growth white pine forest in northwestern Ontario, Canada. In: Forest biodiversity in North, Central and South America and the Caribbean. Eds. F. Dallmeier and J. A. Comiskey. Man and the Biosphere Series, Vol. 21. The Parthenon Publishing Group.
Oberndorfer, E. C. & Lundholm, J. T. 2009. Species richness, abundance, rarity and environmental gradients in coastal barren vegetation. Biodiversity and Conservation, 18: 1523-1553.
Raup, H. M. & Argus, G. W. 1982. The Lake Athabasca sand dunes of Northern Saskatchewan and Alberta, Canada. National Museums of Canada. Publications in Botany, No. 12.