Hadn't heard of it till you mentioned it! [Found it on a search engine as "Guiana peanut"!]
Unless it's what my dad used to call "the American peanut tree" which he grew at my grandmother's house in Bangalore - the seeds did taste a bit like peanuts but were in a pod produced on a tree - doesn't look the same as the pics on the interweb.
cheers
fermi