Water Locust - Gleditsia aquatica
Smaller (up to 60 feet) and more restricted in range than Honeylocust, this species grows along the Mississippi River to Missouri and in southeastern sites in wet places. The leaves have 8-10 pairs of leaflets; the length of the leaf is 6-8 inches. There are thorns on the trunk and the branches. Water Locust has rough bark, pods that reach 2 inches in length, and greenish-white flowers. It grows in areas subject to flooding in association with other water-loving species. The wood is very durable and has been utilized for fence posts.