Black locust trees have distinctive creamy-white fragrant flowers, found in clusters. It is a medium-sized deciduous tree. The fruits resemble a giant, brown pea-pod, 3 - 4 inches long with four to eight seeds inside.
The wood of black locust is strong, hard, and extremely durable. It is very useful for fencing, mine timbers, and landscaping ties. The tree also serves as a good erosion control plant on critical and highly disturbed areas, due to its ease of establishment, rapid early growth and spread, and soil building abilities. In some regions it is considered invasive.