Viridiplantae Cavalier-Smith, 1981 - green plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Chlorophyta Pascher (1914) - green algae
     core chlorophytes
       Class Ulvophyceae K.R. Mattox & K.D. Stewart (1984) - ulvophytes
         Order Cladophorales Haeckel
           Cladophora clade
             1 Genus Cladophora Kützing (1843), nom. cons.
             2 Genus Chaetomorpha Kützing (1845), nom. cons.
             3 Genus Rhizoclonium Kützing (1843)