Poison Ivy is the alter ego taken by Dr. Pamela Lillian Isley, an eco-terrorist and prominent enemy of Batman. A genius scientist and meta-human with hybridized plant DNA, Poison Ivy uses mutant plants, will-bending pheromones and toxins from plants and her own bloodstream for her criminal activities. Ivy has also developed a special relationship with fellow villain Harley Quinn, with the two often being depicted as recurring partners-in-crime, friends and, sometimes, love-interests.