Clades: Welwischiales; Gnetopsida; Gnetophyta;
Gymnospermae;
Plants.
BotanyStem: caudex.
Leaves: 2 cotyledons.
Reproduction: 2 straplike, life-long basal continuous growth venation parallel; female gametophyte tubes grow towards pollen tubes.
Pollen: striate; binucleate sperm.