Article
Lactuca virosa L. subsp. livida (Boiss. & Reut.) Ladero & A. Velasco
The Plant List | Lactuca virosa L. subsp. livida (Boiss. & Reut.) Ladero & A. Velasco |
GRIN Taxonomy | Lactuca virosa L. subsp. livida (Boiss. & Reut.) Ladero & A. Velasco |
Cichorieae Portal | Lactuca virosa L. subsp. livida (Boiss. & Reut.) Ladero & A. Velasco |
Euro+Med Plantbase | Lactuca virosa L. subsp. livida (Boiss. & Reut.) Ladero & A. Velasco |
Europe | Spain |
Lettuce gene pool | Tertiary relative |
Chromosome number | 2n = 18 |
Habitat | Woodland borders; rocks |
Life history | Annual; biennial |
Breeding system | Autogamous |
Flower colour | Yellow |
EURISCO (Dec. 2017) | 4 accessions |
Stem | Erect, glaucous, prickly, often violet-tinged |
Rosette leaves | Oblong-spathulate in outline, undivided to pinnate lobed to pinnatisect, narrowed into a long petiole |
Stem leaves | Upper leaves runcinate with obtuse apex and sagittate base, all spinulose on the midrib and lateral nerves below |
Inflorescence | Broad pyramidal panicle with ascending branches |
Heads | Many (±25) florets. Involucral bracts ovate-lanceolate. Ligules yellow |
Achenes | Not more than 7 mm long, 5-6 ribs, black. Beak white, filiform, as long as or shorter than body. Pappus white |
Reference | description of Lactuca livida in Feráková V. (1977) The Genus Lactuca in Europe. Bratislava |