Robinia viscosa, commonly known as Clammy Locust, is a deciduous tree native to the southeastern United States. It is a member of the Fabaceae family, which also includes peas and beans, and is recognized for its attractive flowers and unique sticky secretions. This species is a valuable component of its native ecosystems and has found a place in ornamental horticulture due to its aesthetic appeal. The Clammy Locust typically grows as a small to medium-sized tree, reaching heights of 20 to 40 feet, though occasionally taller specimens are observed. Its growth habit is often multi-stemmed, contributing to a somewhat irregular but pleasing form. The leaves are pinnately compound, meaning they consist of multiple leaflets arranged along a central stalk. Each leaf typically has 7 to 19 ovate to elliptical leaflets that are smooth-edged and about 1 to 2 inches long. A distinguishing characteristic of Robinia viscosa is the presence of glandular hairs on the young twigs, petioles, and flower stalks, which give the plant its common name "clammy" due to the sticky exudate they produce. The bark is relatively smooth and gray on young trees, becoming more furrowed and darker with age. During late spring and early summer, Robinia viscosa produces abundant clusters of fragrant, pea-like flowers. These blossoms are typically pink to rose-colored, though variations can occur, and are borne in pendulous racemes that can be up to 4 inches long. The flowers are a significant attractant to pollinators, particularly bees. Following flowering, the plant develops small, flattened seed pods, typically about 2 to 4 inches in length, which contain several small, hard seeds. The native range of Robinia viscosa is primarily concentrated in the Appalachian Mountains and adjacent Piedmont regions of the southeastern United States, extending from Virginia south to Georgia and Alabama. It thrives in a variety of habitats, often found in open woodlands, along stream banks, and on rocky slopes. In cultivation, Clammy Locust prefers well-drained soils and full sun to partial shade. It is known for its adaptability and resilience, tolerating a range of soil conditions once established. While not extensively cultivated for economic purposes, Robinia viscosa holds ecological significance in its native habitat, providing food and shelter for wildlife. Its ornamental value lies in its profuse floral display and attractive foliage. The sticky secretions, while a defining feature, can sometimes be a nuisance in landscape settings. Interestingly, like other members of the Robinia genus, Robinia viscosa possesses nitrogen-fixing capabilities, contributing to soil fertility in its natural environment. This adaptation allows it to thrive in less nutrient-rich soils. The wood of Clammy Locust is dense and durable, though its relatively small size limits its widespread use in timber production.