Flora van Nederland Haeckel (1866) - plants
   Division Pteridophyta Schimp. (1879) see Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998)
     Class Sphenopsida see Class Equisetopsida C.Agardh (1825)
       Family Equisetaceae Michx. ex DC. (1804) - horsetails
         Genus Equisetum L. (1753)
           01 Equisetum telmateia Ehrh. (1783) - giant horsetail
           02 Equisetum sylvaticum L. - woodland horsetail
           03 Equisetum fluviatile L. (1753) - water horsetail
           04 Equisetum ×litorale Kühlew. ex Rupr. (pro sp.)
           05 Equisetum ramosissimum Desf. - branched scouringrush
           06 Equisetum hyemale L. - horsetail
           07 Equisetum ×moorei Newman
           08 Equisetum variegatum Weber - variegated horsetail
           09 Equisetum ×trachyodon A.Braun
           10 Equisetum palustre L. - marsh horsetail
           11 Equisetum arvense L. - field horsetail