Polygonatum biflorum (smooth Solomon's-seal, great Solomon's-seal, Solomon's seal) is an herbaceous flowering plant native to eastern and central North America.[2] The plant is said to possess scars on the rhizome that resemble the ancient Hebrew seal of King Solomon.[3] It is often confused with Solomon's plume, which has upright flowers.
^"The Plant List: A Working List of All Plant Species". Retrieved 17 May 2015.
^Utech, Frederick H. (2002). "Polygonatum biflorum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 26. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
^Niering, William A.; Olmstead, Nancy C. (1985) [1979]. The Audubon Society Field Guide to North American Wildflowers, Eastern Region. Knopf. p. 605. ISBN 0-394-50432-1.
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