Equisetum telmateia is accepted species in  the family Equisetaceae   
Genus Equisetum 
This species is found in Albania, Algeria, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, Corse, Cyprus, Czechoslovakia, Denmark, East European Russia, France, Germany, Great Britain, Greece, Hungary, Iran, Ireland, Italy, Kriti, Krym, Lebanon-Syria, Libya, Madeira, Morocco, Netherlands, North Caucasus, North European Russi, Northwest European R, Palestine, Poland, Portugal, Romania, Sardegna, Sicilia, Spain, Sweden, Switzerland, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Ukraine, Yugoslavia.