Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"9420 - Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-117268. Accessed 30 Jan. 2025.