Leaf arrangement refers to the way leaves are positioned on a plant stem. This arrangement can affect how much sunlight each leaf receives, which is crucial for photosynthesis. Common types of leaf arrangements include alternate, where leaves grow one at a time on opposite sides of the stem; opposite, where two leaves grow at the same level on either side; and whorled, where three or more leaves grow from a single point. The arrangement of leaves can also influence a plant's overall health and growth. For example, a well-arranged leaf structure can maximize light capture and reduce shading of lower leaves. Understanding leaf arrangement is important in fields like botany and agriculture, as it helps in identifying plant species and optimizing crop yields.