Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"131674 - Oenothera elata Kunth ssp. hirsutissima (A. Gray ex S. Watson) W. Dietr., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-139999. Accessed 30 Apr. 2025.