One of Batman’s most alluring foes, the floraphile (I might have just made that word up, word fans) named Poison Ivy uses her green-fingered guile to go toe-to-toe with Gotham City’s pointy-eared avenger in 1997’s Batman & Robin. Obsessed with all things botany, she utilizes toxins and pheromones for her evil eco-terrorism – and to good effect, as this deadly orchid has snared more than one man with her poison kiss. Sort of like a member of the Sexy Green Peace Paramilitary Wing then (I just made that up, too). If you are lucky enough to get a date with the flame-haired leafy lovely, remember to take a bottle of calamine lotion with you.