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tree is a woody plant with one main stem -- a trunk -- that allows the
tree to support itself and to grow thicker and taller than other plants.
Trees come in different shapes and sizes, ranging from the 350-foot tall
redwoods of the Pacific Northwest to the saguaro cacti that don’t even
have leaves. Worldwide there are more than 20,000 different species of
trees, 800 of which grow in North America and 180 of which grow in North
Carolina. |
