Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"123485 - Sphenopholis obtusata (Michx.) Scribn. var. major (Torr.) Erdman, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-107339. Accessed 26 Apr. 2025.