Baneberries grow in clusters low to the ground and are glossy red when ripe or greenish when unripe. They may have only three to four berries. Do not be fooled by their small numbers: People have died from baneberries. The first symptoms are blistering and burning of the mouth and throat, which graduates to nausea, stomach cramps and diarrhea. Does your stomach hurt? Did you recently eat a berry?