"Species Details - Aster falcatus Lindl. ssp. commutatus (Torrey & A. Gray) A. G. Jones, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-23009/12-149642. Accessed 31 Aug. 2024.
There are 45 specimens of this Species.