water hyacinth

water-hyacinth的词性：
n.（名词）

1. A tropical American herb (Eichhornia crassipes) forming dense floating masses in ponds and streams and having large bluish-purple flowers and leafstalks with greatly inflated bases.
凤眼蓝：一种热带美洲草本植物（风眼莲 风眼莲属） ，在池塘和溪流上形成密密漂浮的一片，生有大蓝紫色花朵和带膨胀基部的叶柄