Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"2728 - Sphenopholis obtusata (Michx.) Scribn. var. lobata (Trin.) Scribn. ex B. L. Rob., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-79441. Accessed 28 Jan. 2025.