adj.生長水中的

Any of several submersed aquatic plants of the genus Vallisneria. 苦草任一種大葉藻屬的水下水生植物

Herbs perennial, submersed, hydrophilous, monoecious. 多年生草本，沉水，水生，雌雄同株。

Flowers solitary, axillary, mostly submersed and cleistogamous. 花單生，腋生，多數(shù)沉水和。

Leaves submersed and floating, short to long petiolate. 葉浸沒和漂浮，短到長具葉柄。

Floating leaves triangular-rounded to cordate, submersed ones lanceolate. 浮水葉三角形圓形到心形，沉水的披針形。