The heath family in Alaska are mostly shrubs.  They include blueberries, huckleberries and cranberries.  They are frequently evergreen but can also be deciduous.  The flowers are cup, funnel or bell-shaped, have 4-5 sepals, 4-5 petals which are sometimes united at the base, and 1 ovary.  The leaves are usually narrow and not toothed.  They grow in wet acidic soil.