"Wild blueberries" refers to a type of small, naturally growing blueberries that are found in the wild, rather than being cultivated by humans on farms. Full definition
You just dump a bag of frozen wild blueberries in a sauce pan with lemon, ginger, and maple syrup then cook until the berries start to realize their juices. (makingthymeforhealth.com)
In one recent study, obese rats that ate the human equivalent of two cups of wild blueberries per day for eight weeks experienced a significantly improved inflammatory response. (mindbodygreen.com)
I made it with frozen wild blueberries in place of blackberries. (myrecipes.com)