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  1. Tree | Definition, Examples, Parts, Structure, Uses, Importance ...

    Oct 28, 2025 · A tree is a woody plant that regularly renews its growth. Most plants classified as trees have a single self-supporting trunk containing woody tissues, and in most species the trunk produces …

  2. Tree - Structure, Growth, Adaptation | Britannica

    Oct 28, 2025 · Trees are organized into three major organs: roots, stems, and leaves. All the tree branches and central stem terminate in growing points called shoot apical meristems.

  3. Tree - Types, Growth, Structure | Britannica

    Oct 28, 2025 · Tree - Types, Growth, Structure: Trees have been grouped in various ways, some of which parallel their scientific classification: softwoods are conifers, and hardwoods are dicotyledons.

  4. tree - Students | Britannica Kids | Homework Help

    Among the lower, or nonseed-bearing, orders of plants, the tropical tree fern is the only one that may be called a tree. It grows from spores instead of from seeds.

  5. tree - Kids | Britannica Kids | Homework Help

    Introduction Trees are tall, woody plants. They usually have a stem called a trunk. Trees are some of the largest and oldest living things on Earth. Some trees live for hundreds or even thousands of years. …

  6. tree summary | Britannica

    tree, Woody perennial plant. Most trees have a single self-supporting trunk containing woody tissues, and in most species the trunk produces secondary limbs called branches.

  7. Tree Definition & Meaning | Britannica Dictionary

    TREE meaning: 1 : a usually tall plant that has a thick, wooden stem and many large branches; 2 : a drawing that connects things with lines to show how they are related to each other

  8. How Did the Tradition of Christmas Trees Start? - Britannica

    Dec 4, 2025 · Christmas has numerous traditions, of which perhaps none is more popular than a decorated tree. Selecting a fresh tree from a lot, chopping one down on a farm, or unboxing and …

  9. Tree - Adaptations, Structure, Growth | Britannica

    Oct 28, 2025 · The shape of a tree is an ecological construct, since its form is dependent on the habitat and the stresses of the environment. Open-grown trees, such as those in gardens and parks, …

  10. Joshua tree | Plant, Description, Age, Life, Pollination, & Facts ...

    Oct 27, 2025 · Joshua tree, either of two species of treelike yucca, native to the Mojave Desert of the southwestern United States. The western Joshua tree (Yucca brevifolia) is particularly associated …