Sonchus asper is native to Europe, North Africa, and western Asia. It has also become naturalized on other continents and is regarded as a noxious, invasive weed in many places. Its edible leaves make a palatable and nutritious leaf vegetable.Altervista Flora Italiana, Sonchus asper (L.) Hill includes photos and European distribution mapDe la Barra, N. 1997. Reconstrucción y Evolución del Paisaje Vegetal Autóctono de la Zona Urbana y Peri-urbana de la Ciudad de Cochabamba i–v, 1–174. Tesis, Universidad Mayor San Simón, CochabambaMarticorena, C. & M. Quezada. 1985. Catálogo de la Flora Vascular de Chile. Gayana, Botany 42: 1–157Humbert, H. 1923. Les Composées de Madagascar. Mémoires de la Société Linnéenne de Normandie 25: 1–335.Atlas of Living Australia
