Poplars are fast-growing trees. Aspens and cottonwoods are types of poplar. Poplars are closely related to willows and grow in many parts of North America, Europe, Asia, and North Africa. The center of origin of poplars is in China, in a subtropical climate.
Flowers develop pods filled with tiny seeds. These pods will open and the fluffy seeds will float to the ground. Leaves are oval, heart-shaped, or round.
Wood is used to make furniture, particle board, paper, match straw, dugout boats, artificial silk, packing material, container cardboard, building materials for building houses, essential oils, and tannins. People make violet paint from poplar buds and yellow from its leaves.