Subfamily Carpinaceae is a term that refers to a specific family of trees that are commonly found in temperate regions throughout the world. There are a number of different synonyms for this term, including the Juglandaceae family, the Fagaceae family, and the Betulaceae family. While these different terms may have slightly different meanings and implications, they all refer to the same general type of tree species. Some of the most common types of trees that are a part of the Subfamily Carpinaceae include oaks, hickories, walnuts, and birches, among others. These trees are known for their sturdy trunks, lush foliage, and hardy nature, making them a popular choice for landscaping and forestry purposes.