Hydrocotyle ranunculoides, known commonly as floating pennywort, or floating marshpennywort, is an aquatic plant in the family Araliaceae. It is native to North and South America and parts of Africa.
In the United Kingdom it is an invasive alien species which is currently spreading in waterways. It was one of five aquatic plants which were banned from sale in the UK from April 2014, and was the first prohibition of its kind there. Water pennywort is also a weed in Australia. On the other hand, it ...