沼生金钮扣（学名：Acmella uliginosa）为菊科金钮扣属下的一个种。

Acmella uliginosa (marsh para cress) is a species of flowering herb in the sunflower family. The plant is native to South America (Brazil, Bolivia, Venezuela, etc.) and is naturalized in parts of Asia (China, Philippines, India, etc.) and Africa.