Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"65793 - Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B. L. Turner, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-155428. Accessed 15 Feb. 2025.