"Species Details - Crepis runcinata (E. James) Torr. & A. Gray var. glauca (Nutt.) B. Boivin, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-23331/12-151828. Accessed 06 Apr. 2025.
There are 3 specimens of this Species.