Another small evergreen shrub that is common along this trail is the gallberry. Gallberry is a type of holly, but as its berries are black, it does not get to be called a holly. Another reason for its particular name is the fact that the berries are profoundly bitter; like bile, which is produced in the gall bladder. Does this make you want to avoid eating them? Good. We hope so! Remember: all plants and animals are protected here in the preserve. Don’t risk biting down on a bitter fruit like this one! Leave them for the birds.