Lysimachia is a genus of flowering plants in the family Primulaceae, commonly known as loosestrife. This genus includes about 200 species, which are primarily found in temperate regions of the Northern Hemisphere. The plants are characterized by their bright yellow or white flowers and can grow in various habitats, including wetlands and meadows. Many species of Lysimachia are used in gardens for ornamental purposes due to their attractive blooms and foliage. Some varieties, like Lysimachia nummularia, are also known for their ground-covering abilities, making them popular choices for landscaping.