I believe that the pine tree is the national Christmas tree.
From the following web site; www.christmastree.org/whitehouse. The White House Christmas Tree has been presented by Members of the National Christmas Tree Association since 1966. FriPilot
National Christmas Tree - United States - was created in 1923.
In the USA the National Christmas Tree is a large evergreen 26 foot Colorado Blue Spruce located outside the White House in Washington DC. The first tree was decorated in 1923, though the present tree was planted in 2011, when the trunk of the previous tree was damaged during a storm.
The Christmas movie where a squirrel jumps out of a tree is "National Lampoon's Christmas Vacation," released in 1989. The squirrel incident occurs during the Griswold family's search for a Christmas tree.
Several Trees are refered to as Our National Christmas Tree. But, since most of them are not in National Parks, I have to assume you are referring to the General Grant Tree. Nation's Christmas Tree - Sanger, California: In 1926 Congress formally designated California's "General Grant" Sequoia as the "Nation's Christmas Tree." In 1949, nearby Sanger, California was designated as the "Nation's Christmas Tree City." A third honor was awarded on March 29, 1956, when President Dwight D. Eisenhower proclaimed the "Nation's Christmas Tree" as a national shrine to the war dead. During a Christmas ceremony each year, park rangers place a large wreath at the base of the tree.
According to the National Christmas Tree Association, 22.3 million live Christmas trees were sold in 2002,
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Germany !
2,000,000
Making Christmas The View from the Tom and Jerry Christmas Tree - 2011 was released on: USA: 19 June 2011 (San Francisco International LGBT Film Festival)
because the tree gives luck that someday Santa truly will come