Carya illinoensis, commonly known as pecan, is a nut-producing tree native to North America. Synonyms for pecan include hickory, walnut, and nutmeg hickory. The word "hickory" is often used interchangeably with pecan, as hickories are part of the same genus as pecans - the Carya genus. The term "walnut" also refers to several species within the Juglans genus, with the most commonly known being the English walnut. The nickname "nutmeg hickory" comes from the scent produced by the bark of the tree, which is reminiscent of nutmeg. Regardless of the name used, pecans remain a popular ingredient in many recipes all over the world due to their unique flavor and nutritional value.