Butternut is a wood in the walnut family. It grows in north eastern United States and South Eastern Canada. This tree has a relatively short life when compared to other trees, approximately 75 years. Butternut has also been called White Walnut. It possesses a medium tan heartwood and a pale yellowish sapwood. The famous “Bush Butternut,” was planted in 1845 and still defies its average age today, living to be over 180 years old.