the root (no rank)
Eukaryota (domain)
Viridiplantae (kingdom)
Embryophyta (phylum)
Magnoliophyta (subphylum)
Liliopsida (class)
Alismatales (order)
[hide inferior taxa]
Alismataceae (family)
Cymodoceaceae (family)
Hydrocharitaceae (family)
Juncaginaceae (family)
Posidoniaceae (family)
Potamogetonaceae (family)