| Plant |
Height up to 180 cm |
| Rosette leaves |
Large, the lowest 30 x 15 cm, ovate with entire or roughly toothed margins. Apex acute, base narrowed into an alate petiole |
| Stem |
Erect |
| Stem leaves |
Ovate-lanceolate, sessile, sagittate at the base, scarcely dentate, glaucous, densely arachnoid-lanate beneath |
| Inflorescence |
Corymbose panicle |
| Heads |
± 8 florets. Involucre 12-14 mm long, bracts lanceolate. Ligules blue |
| Achenes |
Ovate, 4-6 mm long, 2.0-2.5 mm broad, brownish green with yellowish spots, 5-8 ribs. Beak equalling about 1/3-1/2 of the achene. Pappus white |
| Reference |
Cichorieae Portal - based on Feráková V. (1977) The Genus Lactuca in Europe. Bratislava |
