Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
Count: -
   angiosperms - flowering plants see Subclass Magnoliidae Novák ex Takht. (1967)
  Count: -
     Subclass Magnoliidae Novák ex Takht. (1967) - angiosperms
    Count: -
       core angiosperms - mesangiosperms see [unranked] mesangiosperms
      Count: -
         Superorder Ceratophyllanae Takht. ex Reveal & Doweld (1999)
        Count: [o] 1o
           1 Order Ceratophyllales Link (1829)
          Count: -