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    • Diagram of the layers of vascular tissue of a woody trunk/stem.
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 3 July 2018 Size: 240 KB Referencing Hub media

    This diagram shows the layers of vascular tissue that make up a woody trunk or stem. The sapwood is xylem that is still actively transporting, and the heartwood is xylem that is lignified so is no longer active.

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