Ephedra (the common name is also ephedra, and it is also called jointfir) is a representative of a small, diverse group of seed plants that unfortunately has no common name. They are simply called 'th...Ephedra (the common name is also ephedra, and it is also called jointfir) is a representative of a small, diverse group of seed plants that unfortunately has no common name. They are simply called 'the gnetophytes' after the name for the phylum, Gnetophyta.