Menyanthaceae is a family of aquatic and wetland plants in the order Asterales. There are approximately 60-70 species in six genera distributed worldwide. The simple or compound leaves arise alternately from a creeping rhizome. In the submersed aquatic genus Nymphoides, leaves are floating and support a lax, umbellate or racemoseinflorescence. In other genera the inflorescence is erect and consists of one (e.g., Liparophyllum) to many flowers. The sympetalous, insect-pollinated flowers are five-parted and either yellow or white. The petals are ciliate or adorned with lateral wings. Fruit type is a capsule.
Menyanthaceae species are of economic importance as ornamental water garden plants, with Nymphoides being most commonly traded. The practice of growing non-native water plants has led to several species becoming naturalized or invasive.
^Tippery, Nicholas P.; Les, Donald H. (2011). "Phylogenetic Relationships and Morphological Evolution in Nymphoides (Menyanthaceae)". Systematic Botany. 36 (4): 1101–1113. doi:10.1600/036364411X605092. S2CID83643283.
^"Menyanthaceae Dumort". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2018-09-01.
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