Nymphaeidae
English: Water lily subclass.
Botany: aquatics.
Taxonomy
In the Apg 3 classifcation Nymphaeales is a first diverging clade after Amborellales in the Angiospermae.
In the Plant theory Nymphaeales is in the first Subclass Nymphaeidae of the Class Magnolianae.
It consists of one Order, Nymphaeales.