Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"52977 - Coptis trifolia (L.) Salisb. ssp. groenlandica (O.F. Müll.) Hultén, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-107068. Accessed 25 Jan. 2025.