Tobacco, by far, is the most evil plant in the world, because it has killed so many people, & others make tons of money manufacturing it, so that it can kill more people

Wisteria is the second most evil plant, because of the environmental degradation is causes. It is a popular landscape vine that flowers fragrantly in the springtime. However, it is voracious, growing horizontal runners that easily escape cultivation & invade our natural ecosystems. It can strangle a tree & even pull a small tree down. Legislation needs to be created prohibiting it's continued sale; however, vendors make too much money selling it, unethically.

Tree of Heaven ranks third, aka, the Tree of Hell, or Ghetto Palm. A Chinese tree that has become North America's most common urban weed. It tolerates pollution well, it very fast growing, & spreads like fire. It is malodorous, especially in flower, being pollinated by flies. Copious seeds are wind dispersed. It is called Tree of Heaven because the thick branches always point skyward; it is strongly negatively geotropic

You're right, guess this was a test. Perhaps someone would like to debate, or suggest alternatives

Carolina Sweet Shrub is my favorite plant in the world