Habit: tree, evergreen

Sexuality: monoecious

Branchlets: arranged in a plane, prominently jointed

Important diagnostics: with trimorphic leaves

Leaves: Position: decussate

Leaves: Shape: boat- shaped

Seed Cones: Position: terminal, solitary

Seed Cones: Shape: globose

Seed scales: decussate, peltate

Seeds: Shape: ovoid

Seeds: Other Characteristics: with 2 subapical or apical wings, with unequal wing, with umbilicus

Cotyledons number: 2