What year did DC introduce Poison Ivy?
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Batman's rogues gallery is packed with weirdos, from a guy who's way too into riddles to a dude whose entire personality is "birds." But none of them quite compare to the queen of green herself, Poison Ivy. Seductive and deadly, she stands out as one of the Dark Knight's most complex foes. When did this botanical baddie first sprout up in Batman comics?
