This native tree grows up to 100 feet tall. The leaves are twice (bipinnately) compound with oval, pointed leaflets (A). The purple and white tube flowers form upright clusters (racemes) (C). The fruit is a thick, greenish-yellow pod brown, which turns brown (F). The fruit can often be seen on bare trees during winter (F,G). The gray bark has narrow, scaly ridges, often turned up on one side (B). In comparison, Honey Locust (Gleditsia triacanthos) has similar-looking bark, but it has thorns, rounded leaflets, and elongated, flat seed pods.