Gymnocladus dioica is one of the few trees in Indiana with bipinnately compound or "bipinnate" leaves. Is it the only one? I don't know. Also known as "Coffee Nut," it is uncommon in the northwest third of the state, sometimes being found in the alluvium along streams in woods. It also occurs in more upland mesic forest and even on dry fencerows.The large bean pods stay attached to the tree through winter and drop in spring. An earlier post resulted in some very interesting thoughts from the inimitable Justin Thomas, legendary Ozark botanist.