Betula is a genus of deciduous trees commonly known as birch. There are many different synonyms that can be used to refer to different species of birch trees. Some of the most common synonyms include Betula pendula, also known as silver birch, Betula pubescens, known as downy birch, Betula nigra, referred to as river birch, and Betula occidentalis, known as water birch. Each of these species has its own unique characteristics, but all share the distinctive bark that peels off in thin, papery layers. Birch trees are popular in landscaping due to their attractive appearance, and they also have several practical uses such as in paper-making and furniture manufacturing.