Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"13594 - Chimaphila umbellata (L.) W. P. C. Barton ssp. occidentalis (Rydb.) Hultén, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-103910. Accessed 18 Jan. 2025.