这个词是什么意思？
A plant family of the order Najadales, subclass ALISMATIDAE, class Liliopsida (monocotyledons). This is a group of perennial aquatic herbs with basal leaves.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D035962 · MeSH 2026。
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