Verbatim text: Wiersema, J. H. and C. B. Hellquist. 1994. Nomenclatural notes in Nymphaeaceae for the North American flora. Rhodora 96: 170-178.
Author: Wiersema, J.H., Hellquist, C.B.
Year: 1994
Title: Nomenclatural notes in Nymphaeaceae for the North American flora
Journal: Rhodora
Volume: 96
Pages: 170–178