Sadly Poison Ivy was not best represented in the Kenner action figure line and only received two figures (despite being a major villain).
The main one was Jungle Venom Poison Ivy - a generic representation of Uma Thurman in a plain green bodysuit. It's a little disappointing. The accessories are kind of fun though. The vines are good at tangling up other figures and the water cannon (a typical Kenner play feature) fits the character's green fingered tendencies.
I maybe prefer the other Ivy figure (Evil Entrapment Poison Ivy - part of a two pack with Robin) but this figure does have the better accessories. Get either. Get both.