xylum

• In nature, real trees have long strands of transport tissue in their wood called xylum. —  Inventor Spot - Inventions, Innovations, and Interesting Ideas for the Inventor in All of Us
• When water evaporates from the upper leaves of the tree into the atmosphere, the xylum experiences a negative pressure, and this tension pulls water from the roots to the upper parts of the tree. —  Inventor Spot - Inventions, Innovations, and Interesting Ideas for the Inventor in All of Us
• In a sense the xylum is like a long straw, through which water is sucked to the top. —  Inventor Spot - Inventions, Innovations, and Interesting Ideas for the Inventor in All of Us

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