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The white dust, technically "bloom", found on the trunks of aspen (Populus tremuloides) trees has been used as a sun block. Some trees have more than others. Rubbing a hand on the bark and transfer...
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The white dust, technically "bloom", found on the trunks of aspen (Populus tremuloides) trees has been used as a sun block. Some trees have more than others. Rubbing a hand on the bark and transfer...