Polygonum cuspidatum, commonly known as Japanese knotweed, is a perennial plant native to East Asia. It features hollow stems, large heart-shaped leaves, and clusters of small white flowers. This plant can grow rapidly, often reaching heights of up to 10 feet, and is known for its vigorous growth and ability to spread quickly. Due to its aggressive nature, Polygonum cuspidatum is considered an invasive species in many regions, including parts of North America and Europe. It can damage infrastructure and outcompete native plants, leading to ecological imbalances. Efforts to control its spread often involve mechanical removal and herbicide treatments.