Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"129502 - Polygonum polygaloides Meisn. ssp. confertiflorum (Nutt. ex Piper) J. C. Hickman, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-114202. Accessed 23 Jun. 2025.