Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"855 - Potamogeton pusillus L. ssp. tenuissimus (Mert. & W. D. J. Koch) R. R. Haynes & Hellq., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-694. Accessed 01 Dec. 2024.