Dollarweed, marsh or water pennywort
scientific name: hydrocotyle umbellata

Dollarweed is a common lawn pest, which grows best in damp wet climates. "Dollarweed" is a common lawn pest, which grows best in damp wet climates.

You can buy lawn chemicals and get rid of dollarweed. I just pluck them by hand, they pull out of the ground. The little dollarweeds can be such a nuisance though.

Dollarweed or water pennywort grows in wet sandy soil. I think it looks great as a groundcover, but it is hard to keep the dollarweed out of where it is not supposed to be...