The winterberry, is a species of holly native to eastern North America in the United States and southeast Canada, from Newfoundland west to Ontario and Minnesota, and south to Alabama.
The leaves are not shaped with sharp teeth like other hollies and are not evergreen. The purplish-green foliage turns black with the first frost. In late fall, the inconspicuous flowers are followed by dense clusters of bright red berries that remain on the branches throughout winter. Birds are highly attracted to them.