Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"16560 - 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/12-125557. Accessed 04 Apr. 2025.