Class 11 Botany simulations · Morphology of Flowering Plants

Phyllotaxy: arrangement of leaves

Grow a shoot and choose how leaves are arranged at its nodes: alternate, opposite or whorled.

Open the simulation

What to notice

Spiral and crossed arrangements let lower leaves avoid being shaded by those above.

Key relation

Alternate: 1 leaf per node ; opposite: 2 ; whorled: > 2

Try this

Look down the stem from above for the alternate pattern. Do leaves overlap?

What you can change

• Phyllotaxy: choose Alternate, Opposite (decussate), Whorled
• Number of nodes: 3 to 10

More in Morphology of Flowering Plants

• Floral formulae of three families
• Position of the ovary on the thalamus
• Root systems

See all Class 11 Botany simulations or every Physica simulation.