Lysimachia nummularia

Lysimachia nummularia is a low, creeping plant of the genus Lysimachia. It is commonly called Creeping Jenny, Moneywort, Herb Twopence and Twopenny grass.

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It is native to Europe, but has been introduced to North America, where it is considered an invasive species in some areas. It is available for planting in North America as a horticultural item, but must be used with care because it can spread rapidly and crowd out other plants. It makes a nice ground cover where the range of its growth can be limited, producing yellow flowers in early summer.

The cultivar 'aurea' (golden creeping Jenny) has yellow leaves, and is somewhat less aggressive than the species. hfa