organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Plantae Haeckel (1866) - plants Phylum Gnetophyta Bessey (1907) see Subclass Gnetidae Pax (1894) Genus Welwitschia Hook.f. (1862), nom. cons. Welwitschia mirabilis Hook.f. (1862) - welwitschia