"Species Details - Silphium perfoliatum L., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-25231. Accessed 10 May. 2024.
Specimen Information
There are 2 specimens of this Species.
1 result plotted on map in 1 marker. Note: Only records with latitude and longitude coordinates are plotted on map.