*Pamela Lillian Isley, better known as Poison Ivy, is a major character in the DC Universe, specifically serving as a major character in the Batman franchise, and the deuteragonist of the Harley Quinn series.

She is a brilliant botanist who was transformed into a human/plant hybrid with the ability to manipulate plants and control people through pheromones.

Using her powers, she would lash out against humanity in order to protect the sanctity of plant life and the environment at all costs, bringing her into conflict with Batman and other heroes. Over the years, Ivy's characterization has shifted from being a sadistic eco-terrorist to a neutral extremist, with many modern incarnations portraying her as a well-intentioned anti-hero and an avatar of the Green, the source of all plant life.

She is an enemy and occasional ally of Batman, the Bat Family, and the Birds of Prey, as well as the best friend and girlfriend of Harley Quinn, and a close friend of Catwoman.*