While the _butternut-tree_ is much like the walnut in general

appearance, it does not grow as large. The nuts are different in shape

and in flavor, and the leaflets are hairy instead of smooth. The

butternut does not grow as far north as the walnut, but is often found

side by side with the walnut in the Middle States. The green outer

covering of the nut is oblong and sticky on the surface, and, like the

walnut, will stain the hands. The shell is hard, brown, oblong, and

pointed at one end. It is deeply grooved. The flavor is rich but the nut

being oily soon becomes rancid.