Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
     Subclass Commelinidae Takht. (1967) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820)
       Superorder Poanae Takht. (1997), nom. inval. see Superorder Poanae Takht. ex Reveal & Doweld (1999)
         Order Poales Burnett (1835) - grasses
           Family Poaceae Barnhart (1895), nom. cons. - grass family
             Subfamily Pooideae
               01 Tribe Brachypodieae Harz (1880)
               02 Tribe Triticeae Dumort. (1824)
               03 Tribe Bromeae Dumort. (1824)
               04 Tribe Poeae R.Br. (1814)
               05 Tribe Phleeae Dumort. (1824) see Subtribe Alopecuridinae Dumort. (1829)
               06 Tribe Meliceae Link ex Endl. (1830)
               07 Tribe Brylkinieae Tateoka (1960)
               08 Tribe Diarrheneae Tateoka ex C.S. Campb. (1985)
               09 Tribe Brachyelytreae Ohwi (1941)
               10 Tribe Ampelodesmeae Tutin (1978) see Tribe Poeae R.Br. (1814)
               11 Tribe Stipeae
               12 Tribe Lygeeae Willk. (1861)
               13 Tribe Nardeae W.D.J.Koch (1837)
               14 Tribe Phaenospermateae Renvoize & Clayton (1985)
               15 Tribe Oryzeae Dumort. (1824)
               16 Tribe Phyllorachideae C.E. Hubb. (1939)
               17 Tribe Ehrharteae Nevski (1937)
               18 Tribe Centotheceae Ridl. (1907)
               19 Tribe Arundineae Dumort. (1824)
               20 Tribe Thysanolaeneae
               21 Tribe Micraireae Pilg. (1956)
               22 Tribe Aristideae C.E. Hubb. (1960) see Subfamily Aristidoideae
               23 Tribe Cynodonteae Dumort. (1824)
               24 Tribe Arundinelleae Stapf (1898)
               25 Tribe Isachneae Benth. (1881)
               26 Tribe Paniceae R.Br. (1814)
               27 Tribe Andropogoneae Dumort. (1824)