Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"32552 - Thelypteris palustris Schott var. pubescens (G. Lawson) Fern., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-17423. Accessed 17 Jan. 2025.