Do you want to compare Poison Ivy with Herbert Landon? Discover the powers, weakness & weapons of Poison Ivy and Herbert Landon from Poison Ivy Biography and Herbert Landon Biography. Find out all about Poison Ivy and Herbert Landon.# Check out how is Poison Ivy unique and distinct from Herbert Landon. Discover their love interest, sidekicks, family tree and the movies and games list in which Poison Ivy and Herbert Landon have appeared. Find out everything about them here!