Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"80589 - Toxicodendron radicans (Linnaeus) Kuntze var. rydbergii (Small ex Rydb.) Erskine, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-85678. Accessed 03 Jun. 2024.