Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"94945 - Arnica lessingii (Torr. & A. Gray) Greene ssp. lessingii, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-142385. Accessed 23 Feb. 2025.