The authors acknowledge with thanks S.G. Aiken for suggesting the project and L.L. Consaul for help with technical aspects; S. Edlund for giving one of us (GWA) the opportunity to visit Victoria Island; L. Gillespie, J. M. Gillett, and L.L. Consaul for providing photographs; and the curators of the Department of Agriculture Herbarium (DAO), Queen's University Herbarium (QK) and the Montreal Botanical Garden Herbarium (MT) for the use of their collections. Polar Continental Shelf Project is thanked for logistic support. The Canadian Museum of Nature and the Career Edge Internship Program are acknowledged for their financial support.