The term 'downy poplar' refers to a specific species of tree that is known for its soft, fuzzy leaves and bark. There are several synonyms for this type of poplar, including the white poplar, silver poplar, and abele. These trees are commonly found in areas with moist soil, such as along riverbanks and near lakes and swamps. They are relatively fast-growing and can reach heights of up to 100 feet. Downy poplars are often used in landscaping projects due to their attractive foliage and graceful appearance. They also provide shade and privacy, making them a popular choice for homeowners.