| Plant |
Height 30-150 cm |
| Rosette leaves |
Oblong-ovate or obovate, 12-35 cm long, 3-10 cm wide, rarely entire, pinnatifid or pinnatisect, dentate or entire, petiole-like attenuate, woolly, arachnoid or glabrous |
| Stem |
Erect, often tinged purple, glabrous or arachnoid or woolly at base, striate, usually unbranched |
| Stem leaves |
Obovate or oblong-ovate, entire to pinnatisect, auriculate, glabrous, woolly or arachnoid. Upper leaves pinnatipartite, auriculate |
| Inflorescence |
Spiciform or paniculiform, with many heads. Peduncle covered with bracts |
| Heads |
5 flowers. Involucral bracts ovate, 10-15 mm long, acute to obtuse, minutely ciliate at apex, margin scarious. Corolla ligulate, yellow |
| Achenes |
Cylindrical-ovoid in outline, 8-9 mm long, yellowish brown, with 5-7 ribs, with a filiform beak. Beak half as long to about as long as the corpus. Pappus white |
| Reference |
Cichorieae Portal - based on Feráková V. (1976) Lactuca L. In: Tutin G. et al. (eds) Flora Europaea 4. Cambridge; Feráková V. (1977) The Genus Lactuca in Europe. Bratislava |
