Verbatim text: Miller, G. S. Jr. and P. C. Standley. 1912. The North American species of Nymphaea. Contr. U.S. Natl. Herb. 16: 63-108.
Author: Miller, G.S., Standley, P.C.
Year: 1912
Title: The North American species of Nymphaea
Journal: Contr. U.S. Natl. Herb
Volume: 16
Pages: 63–108