> Over here in northern Europe (Sweden), what we would call a blueberry is what you would call a bilberry

Thanks for pointing out the distinction. In my home country of Romania we also tend to think of bilberries when we're talking about this kind of berry. Traditionally they grow wild, mostly in mountainous areas - they are very flavorful and not so sweet.

Until just now I actually assumed "supermarket" blueberries were just a crappier version of the real thing :)) Good to know they're two distinct plants altogether.