life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukarya Chatton, 1925 see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Tracheata see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
         Phylum Lycophyta - lycophytes see Infraphylum Lycophytae (auct.) Cavalier-Sm. (1998)
           Genus Lycopodium L. (1753)
             1 Lycopodium obscurum L. - ground pine see Dendrolycopodium obscurum (L.) A.Haines (2003)
             2 Lycopodium lucidulum Michx.
             3 Lycopodium selago L. see Huperzia selago (L.) Bernh. ex Schrank & Mart. (1829)