1) Class 2) Class gnetopsida 3) Gnetophytina 4) Gnetopsida 5) Subdivision gnetophytina 1) Gnetophytina 2) Gnetopsida 
The plant division Gnetophyta or gnetophytes consists of three genera of woody plants grouped in the gymnosperms. The living Gnetophyta comprise some 70 species across the three genera Gnetum (family Gnetaceae), Welwitschia (family Welwitschiaceae), and Ephedra (family Ephedraceae). The gnetophytes differ from other gymnosperms (i.e. conifers, cyc...