Ephedra Linn.
Habit: shrub, subshrub, herb
Sexuality: monoecious, dioecious
Stems: erect, much branched
Branchlets: opposite, longitudinally grooved, whorled
Leaves: Position: opposite
Leaves: Shape: scale-like, base reduced to sheaths
Pollen Cone: Position: clustered, solitary
Cones: Shape: ovoid, ellipsoid
Cones: Characteristics: terminal, axillary
Seed Cones: Position: opposite, whorled
Seed Cones: Bract scales: decussate
Cotyledons number: 2
Germination: epigeal