It's called ebeb in Pangasinan, and I don't know what else in other languages, if it is eaten anywhere else at all. I doubt if this is what is called green bananas abroad, or just green bananas are what's called all kinds of bananas when still unripe.
It's not really very popular here in the Philippines - it's an exception to find it in the market these days. Probably because it is not as sweet as other varieties, and it doesn't travel and keep well.
I like subtleties, though, so I value it more than a banana assaulting all my senses with its unabashed sweetness. Pour a peanut-caramel sauce on it, and I'm a child again. Simply eaten on its own, one piece is very filling with its size. Now if only I can find it more often. I don't even know its season, and by the way it appears haphazardly, it may be close to being in no-season, for all time.