Leaf

A leaf is a primarily flat, thin, and typically green part of a plant that is attached to a stem or branch. Leaves are crucial for photosynthesis, the process by which plants convert sunlight into chemical energy by using chlorophyll to absorb light, which facilitates the conversion of carbon dioxide and water into glucose and oxygen. Leaves vary widely in shape, size, and structure and can be simple or compound, with some being adapted for specific environments or functions. Beyond photosynthesis, leaves also play a role in transpiration, gas exchange, and sometimes serve as sites for storage or reproduction in certain plant species. The overall morphology of a leaf, including its arrangement on the stem, margin, and venation, is essential for identifying plant species and understanding their adaptations.