Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"123145 - Potamogeton pusillus L. var. tenuissimus Mert. & W. D. J. Koch, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-108621. Accessed 22 Feb. 2025.