I am not expert enough to answer that. In fact, I am not expert at all. My qualifications in the plant world are that I am about to get Medicare soon and have been growing and collecting for almost 40 years...I do research and read a lot about things though, and I have been a member of the International Aroid Society on and off for years.
It is possible that the plant is what you think. The reason I say that is....
There are a few American ex-pats who live in a couple South American countries...and they collect (not plants, or at least I HOPE they are not filching plants from the wild) but berries from indigenous species and grow them. And they do sell plants, they sell quite a few to people here in the US who import and resell. (and they call piddly little backyard growers like ME bad for the hobby?) It is always possible someone may have collected seed from them and grown them out. Knowing (or NOT knowing) what they are.
