What structure attaches leaves to the stem?

The correct answer is nodes. In botany, a node is the specific area on a stem where leaves (and sometimes branches) are attached. This area is crucial for the plant's growth and development, as it allows for the proper positioning of leaves, which are essential for photosynthesis. The arrangement of nodes can influence how a plant captures light and nutrients effectively.

Each node serves as a point of attachment for leaves, contributing to the overall structure and health of the plant. Additionally, the nodes often play a role in the plant's ability to regenerate new shoots and leaves. Understanding the function of nodes is essential for anyone studying landscape horticulture, as it helps in recognizing how plants grow and how they can be cultivated or managed effectively.