Willow trees are a type of deciduous tree that are known for their long, slender branches and leaves. They are also referred to as osiers, which is a term derived from the Latin word for 'WILLOW'. WILLOW trees are often used in landscaping and can be found in many parks and gardens. They are also used for making baskets and other items due to their flexible branches. The scientific name for WILLOW trees is Salix, and they are commonly referred to as iteas.