Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"31926 - Arnica angustifolia Vahl ssp. tomentosa (J. M. Macoun) G. W. Douglas & Ruyle-Douglas, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-141252. Accessed 28 Dec. 2024.