Bitternut hickory refers to a specific tree species belonging to the Juglandaceae family. This type of hickory tree is commonly referred to as Carya cordiformis, and it has several synonyms. Some of the most commonly used synonyms include bitternut walnut, pignut hickory, and swamp hickory. These trees are native to North America and produce hard-shelled nuts that are bitter and difficult to crack. The wood of the bitternut hickory is durable and hard, making it an ideal choice for use in furniture, flooring, and sporting goods. These trees are also used in landscaping due to their attractive foliage and ability to provide shade.