hagberry

Etymology
According to Some Folklore of Trees, Animals, and River-fishing from the N.E. of Scotland, "The wood of the 'hackberry' or bird-cherry is not used as a staff or for any other purpose, as it is looked on as the witch's tree."

Noun

 * , a species of cherry native to northern Europe and northern Asia, the bird cherry.
 * 1) Its bittersweet astringent fruit, readily eaten by birds.