Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"106645 - Elymus elymoides (Raf.) Swezey ssp. californicus (J.G. Sm.) Barkworth, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-79317. Accessed 16 May. 2025.