Plant Structures: Stem and Trunk

Plant Structures: Stem and Trunk
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Plant stems function in various capacities, primarily in nutrient transport and physical support. The vascular system of plants, complete with xylem and phloem, fills both purposes. Stems, along with roots, also store food for the plant. Pith, a tissue that lies in the center of the stem (or, as it is called in trees, the trunk), is responsible for some nutrient storage as well. v

The vascular system in the stem is continuous with that of the roots, providing an easy route for water and nutrients to flow throughout the plant body.

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