Explain with Suitable Examples the Different Types of Phyllotaxy

Answer: Phyllotaxy is the arrangement of leaves in plants. There are three types of phyllotaxy – alternate, opposite and spiral.

Alternate phyllotaxy: When the leaves are arranged on different stem sides, they are called alternate.

An example of an Alternate phyllotaxy is China rose, Sunflower.

Opposite phyllotaxy: When the leaves are arranged on opposite sides of a stem, they are called opposite.

An example of an Opposite phyllotaxy is Calotropis, Guava.

Spiral phyllotaxy: When there is a spiraling pattern to leaf arrangement, it is called spiral. Spiral phyllotaxy is also known as whorled phyllotaxy.

An example of a Spiral phyllotaxy is Kaner and tulsi.