Solanum kitagawae (currently treated as a synonym of Solanum dulcamara), commonly known as Kitagawa’s nightshade, is a plant in the family Solanaceae, native to southern Siberia, Mongolia, northern China, Korea and Japan. The genus name Solanum was first used by Pliny the Elder (23–79 CE) for a plant also known as ‘strychnos’, most likely Solanum nigrum. There is no consensus on the origin of the name. Solanum kitagawae is named after Masao Kitagawa (1910–1995), a Japanese botanist and pteridologist.