That sounds pretty cool if we can see pics of the wild plants. It'd be great if you could find a flowering spathe, too.
Can we get the name of the closest city so we can stick a pin in the (google) map there? Not too specific so the site gets raped, but enough to give us an idea.
It's an interesting looking plant. I sorta get the impression it's trying to make big leaves.
Keep in mind, C. coronata is found there too and looks a lot like (a smaller) usteriana, it has an aponogetifolia-like spath though.
But again, there are 4 known different forms of UST so its also entirely likely there are other forms too.