TaxonomyGnetales is an Order in the Phylum
Gymnospermae.
In the
Plant theory Gnetales is the only Order in
Gnetidae, a Class in the
Gymnospermae.
Gnetidae is placed in the
Silicon series of the
Gymnospermae.
FamiliesEphedraceae: 1 genus, Ephedra.
Gnetaceae: 1 genus, Gnetum.
Welwitchiaceae: 1 genus, 1 species, Welwitchia mirabilis.