Stems creeping and usually rooting at the nodes, 1 to 2 feet long or longer, smooth. Leaves opposite, broadly oval or orbicular, one-half to 11/2 inches long, with short petioles. Flowers two-thirds to 1 inch broad, solitary in the axils of the leaves, bright yellow; sepals pointed, half as long as the five blunt lobes of the dark-dotted corolla.
Native of Europe and naturalized in moist grassy places throughout the eastern states. Flowering from June to August.
Memoir 15 N. Y. State Museum
A. Moneywort; Creeping Loosestrife - Lysimachia nummularia