Picris sonchoides Vest in Flora 3: 5. 1820 Picris sonchoides Vest in Flora 3: 5. 1820is basionym for Picris hieracioides subsp. sonchoides (Vest) Thell. in Schinz & Keller, Fl. Schweiz, ed. 3, 2: 357. 1914Taxon for this namePicris sonchoides Vest in Flora 3: 5. 1820