这个词是什么意思？
A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. They are evergreen, pyramidal trees with whorled branches and thin, scaly bark. Each of the linear, spirally arranged leaves are joined near the stem on a separate woody base.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D028222 · MeSH 2026。
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