vascular bundle

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.

vascular bundle

noun

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

vascular bundle

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

Word History and Origins

Origin of vascular bundle¹

First recorded in 1880–85

Example Sentences

The section of the stalk shows a single U-shaped fibro-vascular bundle, and a strong outer sclerenchymatous sheath.

From Project Gutenberg

Finally, at b, we recognize the undoubted traces of a vascular bundle running to the leaves.

From Project Gutenberg

The cross and longitudinal sections of a vascular bundle of the stem of Pennisetum cenchroides, are shown in figs. 22 and 23.

From Project Gutenberg

On both sides of the larger vascular bundle there are bands of sclerenchyma.

From Project Gutenberg

In a well developed large vascular bundle the chlorophyllous layer is open below just close to the sclerenchymatous band.

From Project Gutenberg