The Pipe Vine, scientifically known as Aristolochia macrophylla, is a perennial vine native to the eastern United States. It is recognized for its large, heart-shaped leaves and unique, tubular flowers that resemble a pipe, hence its name. The flowers are typically brownish or purplish and can attract various pollinators, including bees and flies. This plant thrives in moist, shaded areas and can grow rapidly, often reaching lengths of up to 30 feet. While it is appreciated for its ornamental value, it is important to note that some species of Aristolochia contain toxic compounds that can be harmful if ingested.