Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"19435 - Claytonia perfoliata Donn ex Willd. ssp. intermontana John M. Miller & K. L. Chambers, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-82954. Accessed 18 May. 2025.