^For the two species found in the eastern United States, Convallaria majalis and Convallaria pseudomajalis, as he calls the endemic taxon from the Appalachians, see Weakley, A. S. 2020. Flora of the southeastern United States. University of North Carolina Herbarium, North Carolina Botanical Garden. p. 281 (download page)
^Gledhill D. 1985. The Names of Plants. Cambridge University Press ISBN0521366755