Alismatales

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Lilianae
Higher taxa
Subordinate taxa
family       Alismataceae
family       Aponogetonaceae
family       Araceae
family       Butomaceae
family       Hydrocharitaceae
family       Juncaginaceae
family       Potamogetonaceae