Question

Explain with suitable examples the different types of phyllotaxy?

Answer 1

Phyllotaxy refers to the pattern or arrangement of leaves on the stem or branch of a plant. It is of three types, alternate, opposite, and whorled phyllotaxy.

• In alternate phyllotaxy, a single leaf arises from the node of a branch. This type of phyllotaxy is observed in the sunflower, mustard, and peepal.
• Plants with opposite phyllotaxy have two leaves arising from the node in opposite directions. It is found in guava and jamun plants.
• Plants with whorled phyllotaxy have three or more leaves arising from the node. It is found in Alstonia.