Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"139327 - Pilosella caespitosa (Dumortier) P. D. Sell & C. West, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-160422. Accessed 16 Apr. 2025.