DENDROLOGY

Detailed explanation-1: -The correct option is B Phyllotaxy. The arrangement of leaves on a stem is known as phyllotaxy. Based on the phyllotaxy, leaves can be classified as either alternate, opposite, or whorled.

Detailed explanation-2: -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.

Detailed explanation-3: -Phyllotaxy is the term used to describe the arrangement of leaves around the stem. The proper arrangement of leaves is important for providing sunlight and photosynthesis. Leaves arise from the node of the stem. They develop from the shoot apical meristems.