Tree of heaven (Ailanthus altissima)

Tree of heaven, also known as Chinese Sumac, Paradise tree, Tree of hell, Varnish tree

Despite its pleasant name, the tree of heaven is notorious in numerous parts of the US for its invasive nature. Many states classify it as an invasive species due to its aggressive spread, prolific seed production, and resilience in poor soil conditions. Its robust root system often causes damage to sidewalks, sewers, and other infrastructure.