The huckleberry was designated the official state fruit of Idaho in 2000. Several huckleberry species of huckleberry are native to Idaho (all belonging to genus Vaccinium, section Myrtillus).

The most common and popular is the black or thin-leaved huckleberry (Vaccinium membranaceum). Black huckleberries usually grow from 1 to 6 feet tall (taking up to 15 years to reach full maturity) with berries up to 1/2 inch in diameter. Black huckleberries produce single plump, dark purple berries in the axils of leaves on new shoots.

A favorite food of bears, black huckleberries grow at elevations between 2,000 and 11,000 feet. They depend on an insulating cover of snow for survival during the winter and have not been successfully grown commercially.

Source:

The State of Idaho - State Symbols: Gov James E. Risch

Links:

American Food and Agricultural Symbols
American Food Holidays