The bois d’arc is native to southwest Arkansas and was a new species when first cataloged by Peter Custis during the Red River Expedition of 1806. The tree is also known as Osage orange or horse apple. The wood is extremely hard, flexible, and resistant to decay. One hundred-year-old fence posts can still be found in excellent condition. These qualities made bois d’arc (French for “bow wood”) a superior trade item as bow wood for the Caddo and Osage.