| 单词 | Quercus borealis |
| 释义 | Quercus borealis (extremely rare) n WORD FAMILY Quercus borealis n large symmetrical deciduous tree with rounded crown widely distributed in eastern North America; has large leaves with triangular spiny tipped lobes and coarse-grained wood less durable than that of white oaks Syn|Hyper Quercus rubra, northern red oak red oak any of numerous American oaks having 4 stamens in each floret, acorns requiring two years to mature and leaf veins usually extending beyond the leaf margin to form points or bristles |
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