a creeping, perennial European plant (Lysimachia nummularia) of the primrose family, with yellow flowers and roundish leaves
See moneywort in American Heritage Dictionary 4
(mŭnˈē-wûrtˌ, -wôrtˌ)
noun
A European creeping plant (Lysimachia nummularia) naturalized in eastern North America, having rounded, opposite leaves and single, axillary yellow flowers. Also called creeping Charlie, creeping Jennie.