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.