bittersweet nightshade
     n : poisonous perennial Old World vine having violet flowers and
         oval coral-red berries; widespread weed in North America
         [syn: {bittersweet}, {climbing nightshade}, {deadly
         nightshade}, {poisonous nightshade}, {woody nightshade},
         {Solanum dulcamara}]
Source: WordNet® 2.0