这个词是什么意思？
The buttercup plant family of the order RANUNCULALES, class MAGNOLIOPSIDA. The leaves are usually alternate and stalkless. The flowers usually have two to five free sepals and may be radially symmetrical or irregular.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D029626 · MeSH 2026。
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