There are approximately 150 species of Lysimachia, but the most commonly known is Lysimachia nummularia, also known as Creeping Jenny, and less commonly known as moneywort. Creeping Jenny is a versatile and vibrant genus of plants that adds a bright and lively touch to gardens and landscapes. Lysimachia, particularly the nummularia species, is cultivated for its trailing, creeping growth habit and ability to thrive in various conditions.