Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"121643 - Pinus contorta Douglas ex Loudon var. yukonensis W. L. Strong, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-107477. Accessed 29 Apr. 2025.