Robinia Viscosa is a tree in the pea family, commonly known as the "clammy locust" due to the sticky sap it produces. It is also sometimes referred to as the "pink, hairy locust" or the "swamp locust". The tree is native to the southeastern United States and is often grown as an ornamental tree for its beautiful clusters of pink flowers that bloom in the spring. However, Robinia Viscosa is also considered to be an invasive species in certain areas where it can outcompete native plant species and disrupt local ecosystems. Despite its negative impact on certain environments, Robinia Viscosa remains a popular choice for landscaping and gardening.