Woody nightshade, also known as Solanum dulcamara, is a woody perennial plant that belongs to the Solanaceae family. It is commonly found in Europe, Asia, and North America. This plant has several synonyms, including bittersweet nightshade, climbing nightshade, and poison berry. These names reflect some of the qualities of the plant. Its stems can climb up to 4 meters long, and its fruits are poisonous, containing the same toxin as the deadly nightshade. Woody nightshade has also been used in traditional medicine for various purposes, such as treating diarrhea, sore throat, and skin conditions. Despite its medicinal use, it is important to avoid ingesting the plant's berries as they can be lethal.