weird plant; pls help identify =)

The climate is tropical as this photo is taken in the Philippines. I have no idea what this plant is (a friend brought it from the jungle). At first it looked like a horn sticking out of the ground. Then something on the top formed which looked like a brain (the middle part in the pic). The outer "leaves" unfolded from the "brain" overnight and I could swear that there was an odd stench in my yard reminding me of something dead. Im not sure how else to describe but heres a few pics... thanks =)

 

It may be Amorphophallus paeoniifolius.

 

thanks alot. i've been wondering what this plant was. quite odd looking for me. Thanks again !

 

Thanks a lot. Your response was greatly appreciated =)

 

That is it I have two of them growing in my yard in the Philippines. I think they look nice and could not figure out if I should let them grow or pulll them out. The smell at first was super bad but now it is ok. Thanks for the information