Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"42151 - Senecio congestus (R. Br.) DC. var. palustris (L.) Fernald, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-165303. Accessed 27 Feb. 2025.