Parent taxon: Monocotyledoneae according to G. G. Puebla et al. 2019
See also Benzecry and Brack-Hanes 2008, Mabberley 2000, Taylor et al. 2008 and The Angiosperm Phylogeny Group 2016
Sister taxa: Alismales, Arales, Arundo, Commelinacea, Commelinidae, Deccananthus, Doryanthites, Dracaenites, Festucophyllites, Florentinites, Glumiflorae, Graminales, Halocharis, Helobiae, Hypoglossidium, Isselia, Liliidae, Microrrhagion, Monocotylophyllum, Monocotylorhizos, Monocotylostrobus, Monoporites, Monosulcites, Najadales, Palmales, Palmoidopteris, Pandanites, Phylladelphia, Phyllotaenia, Podostachys, Principes, Ravenalospermum, Restioniidites, Sabalpollenites, Scitaminales, Scitamineae, Shuklanthus, Spathiflorae, Stellatopollis, Triloculaire, Triloculocarpon, Velamenorhizos, Viracarpon, Xyridales, Zingiberidae
Subtaxa: Alismataceae Aponogetonaceae Butomaceae Cymodoceaceae Hydrocharitaceae Juncaginaceae Maundiaceae Pennipollis Posidoniaceae Potamogetonaceae Ruppiaceae Scheuchzeriaceae Thalassocharis Tofieldiaceae Zannichelliaceae Zosteraceae
Ecology: "photoautotroph"