Britannica Sources used in this answer

Which three living genera belong to the division Gnetophyta?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

welwitschia — Gnetophyte Welwitschia, or tumboa (*Welwitschia mirabilis*), in Namibia.

The division Gnetophyta is represented by three living genera:

Ephedra12
Gnetum13
Welwitschia14

These three genera are currently classified into separate families within the order Gnetales, though they are sometimes organized into three distinct orders—Ephedrales, Gnetales, and Welwitschiales—to reflect their significant biological differences.5