Subkingdom Tracheobionta - Vascular plants
Super Division Spermatophyta
- Seed plants
Ephedra is the lone genus in the
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,
America south to Patagonia.
The majority of the species are small shrubs,
and they are dioecious.