In China, this extremely rapidly growing tree I used is called "the tree of heaven". It has a long and rich history, used in Chinese medicine  for curing ailments ranging from mental illness to baldness. It was one of the first trees brought west during a time when chinoiserie was dominating European arts, and was initially hailed as a beautiful garden specimen. However, enthusiasm soon waned after gardeners became familiar with it's remarkable suckering ability makes it possible for this tree to clone itself  and its foul smelling odour. Today, It is considered a noxious weed in many countries.