| Plant |
Height up to 100 cm, tuberous root |
| Rosette leaves |
Rossulate, pinnate lobed to pinnatisect |
| Stem |
Erect, striate, glabrous, branched in the upper part |
| Stem leaves |
Oblong, elliptic to oblong lanceolate in outline, 8-12 cm long, non-lobed or pinnatilobed to pinnatisect with 2-4 lateral segments, sessile. Terminal segment oblong, triangulate |
| Inflorescence |
Thyrsoid panicle |
| Heads |
Numerous, oblong-ovoid, consisted of 8-22 florets. Involucre 11-14 mm long, 5-8 mm broad, inner bracts scarious marginate |
| Achenes |
Oblong elliptic to obovate, 6.0-7.2 mm long, 9-14 ribbed, black. Beak concolorous, at least as long as 1/2 of the body (up to 3.1 mm). Pappus 5.0-6.5 mm long, white, deciduous |
| Reference |
Cichorieae Portal - based on Feráková V. (1977) The Genus Lactuca in Europe. Bratislava |
