Plants that have true roots stems and leaves and can grow to be a very tall and contain xylem and phloem?

Trees.


';All trees have roots, trunks, branches and stems, and some kind of leaf or needle.'; http://www.reachoutmichigan.org/funexper鈥?/a>





If it's the xylem %26amp; phloem that are confusing you, here's a simple explanation (the site the quote's from has pics):


The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved minerals. As a plant, you have roots to help you absorb water. If your leaves need water and they are 100 feet above the ground, it is time to put the xylem into action! Xylem is made of vessels that are connected end to end for the maximum speed to move water around. They also have a secondary function of support. When someone cuts an old tree down, they reveal a set of rings. Those rings are the remains of old xylem tissue, one ring for every year the tree was alive.





PHLOEM FUN


The fun never stops in the plant's circulatory system. Most plants have green leaves, where the photosynthesis happens. When those sugars are made, they need to be given to every cell in the plant for energy. Enter phloem. The phloem cells are laid out end-to-end throughout the entire plant, transporting the sugars and other molecules created by the plant. Phloem is always alive. Xylem tissue dies after one year and then develops anew (rings in the tree trunk). What is the best way to think about phloem? Think about sap coming out of a tree. That dripping sap usually comes from the phloem.


http://www.biology4kids.com/files/plants鈥?/a>





See also (more scientific, complete with microscope pics:


http://www2.mcdaniel.edu/Biology/botf99/鈥?/a>