Poison Ivy has been portrayed as a love interest of Batman. She has teamed up on occasion with fellow villains Catwoman and Harley Quinn, with Harley being her close friend, recurring ally and sometimes romantic interest. She is a Gotham City misanthropic botanist and biochemist who is obsessed with plants, ecological extinction, and environmentalism. The character's appearance is considered iconic; she is typically drawn barefoot in a one-piece costume adorned with leaves and vines, with occasional variations to her skin tone. She uses plant toxins and mind-controlling pheromones for her criminal activities, which are usually aimed at protecting endangered species and the natural environment.
Uma Thurman portrayed the character in Batman & Robin, and Clare Foley, Maggie Geha, and Peyton List played her in Gotham. She has also been voiced by Diane Pershing in the DC animated universe, Piera Coppola on The Batman animated series, Tasia Valenza for the Batman: Arkham video game franchise, Riki Lindhome in The Lego Batman Movie, and Lake Bell in Harley Quinn.