"Species Details - Campanula rotundifolia L. ssp. langsdorffiana (Fisch. ex Trautv. & C. A. Mey.) N. S. Vodopianova, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-17668. Accessed 14 Mar. 2025.
There is 1 specimen of this Species.