Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"16559 - Ambrosia psilostachya DC. var. coronopifolia (Torr. & A. Gray) Farw., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-125556. Accessed 19 Apr. 2025.