Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"111121 - Najas flexilis (Willd.) Rostk. & W. L. E. Schmidt, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-15988. Accessed 19 May. 2025.