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 Tribe Arundineae Dumort. (1824) 1 Genus Arundo L. (1753) 2 Genus Cortaderia O. Stapf (1897), nom. cons. 3 Genus Danthonia DC. (1805) 4 Genus Molinia Schrank (1789) 5 Genus Phragmites Adans. (1763) 6 Genus Schismus P.Beauv. (1812) 7 Genus Triodia R.Br. (1810)