Verbatim text: Ward, D. B. 1977. Keys to the flora of Florida. 4. Nymphaea (Nymphaeaceae). Phytologia 37: 443-448.
Author: Ward, D.B.
Year: 1977
Title: Keys to the flora of Florida. 4. Nymphaea (Nymphaeaceae)
Journal: Phytologia
Volume: 37
Pages: 443–448