Habit: tree, deciduous

Branchlets: dimorphic (long and short branchlets)

Branches: irregularly whorled

Important diagnostics: with monopodial trunk

Leaves: Position: spirally arranged, radially spreading

Leaves: Shape: flattened, oblanceolate-linear

Pollen Cone: Position: terminal

Seed Cones: Position: solitary

Seed Cones: Shape: globose, ovoid

Seed scales: adnate with bracts in basal

Seeds: Other Characteristics: with backward projecting wing

Cotyledons number: 4, 5, 6, 7-10