单词	gray birch
释义	gray birch noun 1 : a small birch (Betula populifolia) of northeastern North America that has many lateral branches, grayish-white bark, triangular leaves, and soft weak wood and that occurs especially in old fields reverting to woodland 2 : yellow birch Example Sentences Recent Examples on the Web By planting wild indigo, gray birch, and switchgrass, his goal was to take a chunk of the Catskills and put it on his roof. The Editors, Outside Online, 10 Nov. 2020 Word History First Known Use 1846, in the meaning defined at sense 1
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