It refers to the agricultural land they're on. Blueberries need very acidic soil, so acidic most plants can't handle it. So if you've got a very naturally acidic property and can't cultivate anything else, you do blueberries.
Pine barrens are similar - dry, shitty, sandy soil that only the pine trees do well in.
Oh, so that's why blueberries flourish in the far north despite the short growing season. From archaeology I know that the soil there is so acidic that it has destroyed most remains of ancient cultures.
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u/C-57D 2d ago
it's called a barren?