vascular bundle
Quick Summary
A vascular bundle is a strand of specialized vascular tissue in plants, primarily composed of xylem and phloem. These tissues are crucial components of the vascular system in plants, responsible for transporting essential substances throughout the plant body.12
- Xylem transports water and dissolved minerals from the roots to the leaves and provides structural support.3
- Phloem conducts food produced during photosynthesis from the leaves to all other parts of the plant.4
Vascular bundles run longitudinally along the stem. Their arrangement differs between plant types: in monocots (like grasses), they are scattered throughout the stem, while in dicots (like roses), they are arranged in a ring surrounding a central pith. These bundles are interconnected with the vascular systems of both the roots and the leaves, forming a continuous transport network.25
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
angiospermOrganization of the vascular tissue…organized into discrete strands called vascular bundles, each containing xylem and phloem. In stems, the vascular tissue is organized into many discrete vascular bundles. In the roots, the vascular tissue is organized within a single central vascular cylinder. The anatomy of roots and stems is discussed in their respective sections…
Read More…organized into discrete strands called vascular bundles, each containing xylem and phloem. In stems, the vascular tissue is organized into many discrete vascular bundles. In the roots, the vascular tissue is organized within a single central vascular cylinder. The anatomy of roots and stems is discussed in their respective sections…
Read More
angiospermStemsThe vascular bundles of the stem are continuous not only with the primary vascular system of the root but also with the vascular bundles of the leaves. At each node, one or more longitudinal stem bundles enter the base of the leaf as leaf traces, connecting…
Read MoreThe vascular bundles of the stem are continuous not only with the primary vascular system of the root but also with the vascular bundles of the leaves. At each node, one or more longitudinal stem bundles enter the base of the leaf as leaf traces, connecting…
Read More
plantStems…organized into discrete strands or vascular bundles, each containing both xylem and phloem. The cells between the vascular bundles are thin-walled and often store starch. The peripheral region of cells in the stem is called the cortex; cells of the central portion make up the pith. The outermost cells of…
Read More…organized into discrete strands or vascular bundles, each containing both xylem and phloem. The cells between the vascular bundles are thin-walled and often store starch. The peripheral region of cells in the stem is called the cortex; cells of the central portion make up the pith. The outermost cells of…
Read More
fernVenation…of the leaf veins, or vascular bundles (which can be seen readily by holding the specimen up to a strong light), are pinnate, and the veins are free; that is, they all diverge and never coalesce, either along their sides or at the ends. Nevertheless, there are numerous fern groups…
Read More…of the leaf veins, or vascular bundles (which can be seen readily by holding the specimen up to a strong light), are pinnate, and the veins are free; that is, they all diverge and never coalesce, either along their sides or at the ends. Nevertheless, there are numerous fern groups…
Read More


