Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
Count: [f] 2c;232o;592f;6085g;41s; †1g
   Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
  Count: -
     Subclass Commelinidae Takht. (1967) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820)
    Count: [f] 21o;30f;394g
       Superorder Poanae Takht. (1997), nom. inval. see Superorder Poanae Takht. ex Reveal & Doweld (1999)
      Count: [f] 4o;7f;179g
         Order Poales Burnett (1835) - grasses
        Count: [f] 1f;158g
           Family Poaceae Barnhart (1895), nom. cons. - grass family
          Count: 158g
             Subfamily Pooideae
            Count: 126g
               Tribe Stipeae
              Count: 3g
                 Genus Piptatherum
                Count: -