Nymphaea elegans is a blue Mexican water lily. The flowers are violet and three to six inches across. The flowers open between 8 A.M. and 1 P.M.
GalleriesFlowers and Shrubs: N-O
L. H. Bailey Standard Cyclopedia of Horticulture (New York, New York: The MacMillan Company, 1917) volume 4, page 2312