Poison Ivy [DC Comics]

Botanist Dr. Pamela Lillian Isley was transformed into a plant-human hybrid by a science experiment gone wrong. With chlorophyll flowing through her veins instead of blood, she developed a toxic touch and a pheromone-fueled talent for seduction. Her crimes became more ecologically focused as she had increasingly abandoned her human side and identified more with the natural world. Her unique brand of eco-terrorism often put her into conflict with Batman, whose iron will usually protected him from her seductive powers. Since her encounter with the Dark Knight on Arkham Island, Ivy had been transferred to Arkham City. After she took refuge in a vine-covered stronghold, Ivy kept humanity away rather than participating in the gang wars of Arkham City. Her presence would go unnoticed until Catwoman sought her out. There, she began plotting destruction for Gotham.