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A European creeping plant (Lysimachia nummularia) naturalized in eastern North America, having rounded, opposite leaves and single, axillary yellow flowers. Also called creeping Jenny.
[From the round shape of its leaves.]
(Plants) a European and North American creeping primulaceous plant, Lysimachia nummularia, with round leaves and yellow flowers. Also called: creeping Jennie
mon•ey•wort(ˈmʌn iˌwɜrt, -ˌwɔrt)
a creeping plant, Lysimachia nummularia, of the primrose family, having roundish leaves and solitary yellow flowers.