Walnut, also called Black Walnut (scientific name: Juglansnigra), has a heartwood of pale brown to dark brown color with dark brown streaks. Sapwood is pale yellow-grey to white. Figured grain patterns are also present. Its texture is medium, luster is moderate and grain is generally straight but may be slightly irregular.
Walnut is commonly found in eastern United States. It is very durable for resisting decay but prone to insect attack.