The Class of

L.D. Benson ex Reveal, Phytologia 79: 69. 29 Apr 1996

Kingdom  Plantae - Plants
 Subkingdom  Tracheobionta - Vascular plants
  Super   Division  Spermatophyta - Seed plants
   Division   Gnetophyta - Mormon tea and other gnetophytes
     Class   Ephedropsida
      Order   Ephedrales
        Family   Ephedraceae
         Genus   Ephedra
gerardiana Part of Taxonomy Collection

Ephedra is the lone genus in the family Ephedraceae.
There are about thirty species in the genera, which occurs in dry climates
 over a wide area mainly in the Northern Hemisphere,
across southern Europe, north Africa, southwest and central Asia,
south-western North America, and, in the Southern Hemisphere,
in South America south to Patagonia.
The majority of the species are small shrubs, and they are dioecious.