Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"18160 - Helianthus annuus L. ssp. lenticularis (Douglas ex Lindl.) Cockerell, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-154541. Accessed 18 Nov. 2024.