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  1. Leaf - Wikipedia

    Leaves vary in shape, size, texture and color, depending on the species. The broad, flat leaves with complex venation of flowering plants are known as megaphylls and the species that bear them (the …

  2. Leaf | Definition, Parts, & Function | Britannica

    Feb 6, 2026 · Leaves are the primary sites of photosynthesis and manufacture food for plants. They are an integral part of the stem system and can be modified into a variety of other plant organs.

  3. Leaves – Biology - UH Pressbooks

    Leaves are the main sites for photosynthesis: the process by which plants synthesize food. Most leaves are usually green, due to the presence of chlorophyll in the leaf cells. However, some leaves may …

  4. 3.1 Leaves – The Science of Plants - Open Textbook Library

    Leaves are shoot structures that attach to stems and branches at nodes. Leaves are made up of cells that usually contain a high concentration of chloroplasts (cell organelles unique to plants) and are …

  5. Plant Leaves and Leaf Anatomy - ThoughtCo

    Oct 2, 2024 · Leaves and different parts of leaves can have various shapes and sizes. The basic components of leaves in flowering plants (angiosperms) include the blade, the petiole, and the stipules.

  6. Leaves - Biology Online Tutorial

    Leaves are covered with a thin layer of epidermal cells which permit light to the interior of the leaf, yet protect the cells from physical damage. In addition to photosynthesis, leaves are involved in other …

  7. The Secret Life of Tree Leaves: Structure, Function & Uses

    Use this quick guide to answer common questions about tree leaves, conifer needles, composting, mulch, and edible or medicinal leaves. For more field tips, see our tree identification guide.