"Species Details - Rorippa islandica (Oeder ex Murray) Borbás var. microcarpa (Regel) Fernald, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-20750/12-120688. Accessed 10 Oct. 2024.
There are 3 specimens of this Species.