Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"136609 - Populus deltoides W. Bartram ex Marshall ssp. monilifera (Aiton) Eckenwalder, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-147297. Accessed 26 Apr. 2025.