Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"34483 - Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. var. geminata (Trin.) Hitchc., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-66308. Accessed 30 Mar. 2025.