Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"133040 - Tephroseris palustris (L.) Reichenbach ssp. congesta (R. Brown) Holub, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-129775. Accessed 30 Apr. 2025.