1.  huckleberry(n = noun.plant) - any of various dark-fruited as distinguished from blue-fruited blueberries;
is a kind of blueberry, blueberry bush

2.  huckleberry(n = noun.plant) - any of several shrubs of the genus Gaylussacia bearing small berries resembling blueberries;
is a kind of bush, shrub
is a member of gaylussacia, genus gaylussacia
has particulars: black huckleberry, gaylussacia baccata, dangle-berry, dangleberry, gaylussacia frondosa, box huckleberry, gaylussacia brachycera

3.  huckleberry(n = noun.food) - blue-black berry similar to blueberries and bilberries of the eastern United States;
is a kind of berry
is a part of black huckleberry, gaylussacia baccata

   The edible black or dark blue fruit of several species of the American genus Gaylussacia, shrubs nearly related to the blueberries (Vaccinium), and formerly confused with them. The commonest huckelberry comes from Gaylussacia resinosa. [1913 Webster]

huckleberry, n. (pl. -ies)
1 any low-growing N. American shrub of the genus Gaylussacia.
2 the blue or black soft fruit of this plant.

Etymology:
prob. alt. of hurtleberry, WHORTLEBERRY

black huckleberry, box huckleberry, evergreen huckleberry, fool's huckleberry, garden huckleberry, huckleberry finn, huckleberry oak, squaw huckleberry