 All but one species will be moved to other genera, leaving only Prenanthes purpurea.The species, sometimes called purple lettuce, is widespread across much of Europe and the Middle East.see "Aetheorhiza Askellia Brickellia Chondrilla Crepidiastrum Crepis Emilia Erythroseris Faberia Hololeion Hypochaeris Ixeris Kovalevskiella Lactuca Lapsanastrum Launaea Lygodesmia Nabalus Notoseris Paraprenanthes Parasenecio Picrosia Sonchella Sonchus Soroseris Stephanomeria Trixis Youngia"