这个词是什么意思？
A plant family of the order Commelinales, subclass Commelinidae, class Liliopsida (monocotyledons) that are often somewhat succulent. The leaves are alternate, simple, parallel-veined, and usually with a closed sheathing base. The flowers are often in cymes and have 3 petals and 3 sepals.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D034821 · MeSH 2026。
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