By Any Other Name

Tree of Heaven, the tree which famously grows through the fictional cracks of Brooklyn pavement, is weighed down by large clusters of twisty seeds. Lime green and turning red, they ready themselves to fall to the ground and grow a whole new crop. Ironically named, this tree is known for its stinky spring flowers and its tenaciousness. Like many invasive plants (they are native to China), this one thrives on disturbed soils, and grows quite rapidly. It spreads not only by those seeds, but by root suckers. It is, I've heard, hard to get rid of, though I've never tried.