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Definition of white poplar
1a : a Eurasian poplar (Populus alba) that is widely cultivated and naturalized in the U.S. and has whitish bark and leaves with a white-tomentose lower surface
b : an aspen (Populus tremuloides) of the U.S. with small leaves and long petioles
2 : the wood of a tulip tree (Liriodendron tulipifera)
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Time Traveler for white poplar
The first known use of white poplar was in 1542
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