vascular bundle

American  

noun

Botany.

1. a longitudinal arrangement of strands of xylem and phloem, and sometimes cambium, that forms the fluid-conducting channels of vascular tissue in the rhizomes, stems, and leaf veins of vascular plants, the arrangement varying with the type of plant.

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vascular bundle British  

noun

1. a longitudinal strand of vascular tissue in the stems and leaves of higher plants

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vascular bundle Scientific  

1. A strand of primary tissues found within the stem of a plant and consisting of xylem and phloem, along with cambium. The vascular bundles develop from the procambium of the growing stem. In the monocotyledons, vascular bundles are found in complex arrangements dispersed throughout the stem. In eudicotyledons, they are arranged in a ring, with the xylem of each bundle on the inside and the phloem on the outside.

2. Also called fibrovascular bundle

3. See also fascicular cambium interfascicular cambium

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Etymology

Origin of vascular bundle

First recorded in 1880–85

Example Sentences

The stem is star-shaped rather than circular; the vascular bundles are scattered in the lobes of the star-shaped body and absent in the arcs.

From New York Times

The XPower system, which attaches to a tractor, kills plants in less than a second by pulsing electricity through them to destroy the vascular bundles that transport water and nutrients.

From BBC

Photographed by David Maitland at 200 times life size, the image is a slice through the ‘vascular bundles’ that plants use to transport fluids through their tissues.

From Nature

The beautiful patterns are where the vascular bundles of the plant — the tubes in the tree that carry water and sugars — used to connect.

From Scientific American

The cutting off of the vascular bundles and disturbance of the water supply only partly explain the premature fall.

From Project Gutenberg