root › cellular organisms › Eukaryota › Viridiplantae › Streptophyta › Streptophytina › Embryophyta › Tracheophyta › Euphyllophyta › Spermatophyta › Magnoliopsida › Mesangiospermae › Liliopsida › Petrosaviidae › commelinids › Poales › Poaceae › PACMAD clade › Arundinoideae › Molinieae › Molininae › Phragmites › Phragmites australis