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.
英
美
- 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