Small, fruit-bearing, branching shrub of the genus Gaylussacia, in the heath family, resembling in habit the English bilberry, to which it is closely related. It bears fleshy fruit with 10 nutlike seeds, differing in this respect from the blueberry. The common huckleberry of the northern U.S. is G. baccata, also called black, or highbush, huckleberry. The florists', or evergreen, huckleberry is actually a blueberry. The red huckleberry of the southern U.S. is commonly called the southern cranberry.