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Oregon designated the Douglas-fir (Pseudotsuga menziesii) as the official state tree in 1939. Named after a Scottish botanist who traveled through Oregon in the 1820's, the Douglas fir can grow to a height of 325 feet and have a 15 foot diameter trunk (averaging 200 feet in height and six feet in diameter). The timber from Douglas firs is said to be stronger than concrete.
Photo of Douglas fir cone by cted by David Douglas / Wikipedia.org
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