Devils Tower, the first national monument in America, could almost be mistaken for the stump of an enormous tree.

魔鬼塔是美国的第一个国家纪念碑，它几乎会被误认为是一个巨大的树桩。

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The bolt that struck Honey Prairie, deep inside the Okefenokee National Wildlife Refuge, might have just knocked down a tree or two.

击中奥克弗诺基国家野生动物保护区深处的蜜糖大草原的闪电，可能只会撂倒两三棵树而已。

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The National Arbor Day Foundation has challenged many cities to earn its "Tree City USA" flag by planting and protecting more trees.

国家植树节基金会向许多城市发起挑战，要求它们通过种植和保护更多的树木来赢得那面“美国树城”的旗帜。

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Some areas of Joshua Tree National Park in California, for example, can no longer support the trees that the park is named for.

VOA: special.2009.09.28

Another climber,John Lang, suggested Bachar free-solo an area called Double Cross, in Joshua Tree National Park,California.

VOA: special.2009.12.09

They include the sessile oak, which has been designated the national tree of Wales, and one of only two oaks native to the British Isles.

BBC: John Whitehead at the trail

For 89 years, Presidents and Americans have come together to light the National Christmas Tree.

WHITEHOUSE: National Christmas Tree Lighting Ceremony

In 2010, U.S. consumers purchased 27 million farm-grown Christmas trees and 8.2 million artificial trees, according to The National Christmas Tree Association.

FORBES: Why REAL Christmas Trees Are Back In Style