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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


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