Tree of Heaven

Tree of heaven (Ailanthus altissima) is a crappy piece of crap of a tree.  It is fast growing (often 2+ feet per year) and short lived.  It is sometimes called "stink tree" or "stinking sumac" because is stinks. It also sucks. Break off and crush a leaf - smells like evil burnt nuts. Cutting does not kill it -- it will resprout with vengeance.  Can be pulled from roots when young, and otherwise needs to be dug up or sprayed.  Sometimes grows in little tight spaces, like between garages or in alleys.