Poison Ivy is Dr. Pamela Lillian Isley. She is an enemy of Batman.She was a scientist working for Dr. Jason Woodrue, until she found out about his evil experiments. He threw her in a vat full of vegetable chemicals in order to kill her. However, she didn't die, and became the supervillain Poison Ivy.Her lips are full of poison, thus she kills every man that she kisses. She has immunity to all toxins known to man.She has an army of mutant plants at her disposal. Also, she has a powder case with pheromones that she uses to seduce men.She is Harley Quinn's best friend, and they often team up to commit crimes and try to kill Batman.She is an eco-terrorist and her crimes are provoked by people harming the planet. She used to date Harvey Dent until she tried to kill him with a kiss and she hates the Joker.