Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"131956 - Elymus trachycaulus (Link) Gould ex Shinners ssp. subsecundus (Link) Gould, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-115681. Accessed 15 Jul. 2025.