Lythrum salicaria, commonly known as purple loosestrife, is a perennial plant native to Europe and Asia. It typically grows in wetlands, marshes, and along riverbanks, reaching heights of 3 to 7 feet. The plant features tall spikes of vibrant purple flowers that bloom from mid-summer to early fall, attracting various pollinators. This species is known for its aggressive growth and can outcompete native plants, leading to ecological imbalances. As a result, Lythrum salicaria is considered an invasive species in many regions, including parts of North America, where it disrupts local ecosystems and reduces biodiversity.