| Plant |
Height up to 100 cm, glabrous |
| Rosette leaves |
Obovate to oblong-spathulate in outline, pinnately lobed to laciniate-runcinate, narrowed into a decurrent stalk-like base. Segments lanceolate with entire or toothed margins, undivided part of lamina 2-8 cm wide |
| Stem |
Erect, terete, greyish, branched in the upper part |
| Stem leaves |
Ovate in outline with acute apex and semi-amplexicaul base |
| Inflorescence |
Pyramidal panicle with ascendent branches |
| Heads |
5-8 florets. Involucral bracts oblong, 12-14 mm long, acute. Ligules yellow |
| Achenes |
Oblong, 7-10 mm long, black, with 7-12 shallow ribs. Beak equalling 1/3 of the body. Pappus white |
| Reference |
Source: Cichorieae Portal - based on Feráková V. (1977) The Genus Lactuca in Europe. Bratislava |
