Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"111469 - Botrychium hesperium (Maxon & R. T. Clausen) W. H. Wagner & Lellinger, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-16237. Accessed 22 Jan. 2025.