Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"73449 - Carduus nutans L. ssp. leiophyllus (Petrovič) Stoj. & Stef., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-150743. Accessed 22 Feb. 2025.