Lactuca quercina L. subsp. quercina

The Plant List Lactuca quercina L.
GRIN Taxonomy Lactuca quercina L. subsp. quercina
Cichorieae Portal Lactuca quercina L. subsp. quercina
Tropicos Lactuca quercina L. subsp. quercina

Native distribution
Europe Albania; Austria; Belarus; Bosnia & Herzegovina; Croatia; Czech Republic; France; Germany; Greece; Hungary; Italy; Liechtenstein; Macedonia; Moldova; Montenegro; Romania; Russian Federation; Serbia; Slovakia; Slovenia; Sweden; Ukraine
Asia Armenia; Azerbaijan; Georgia; Russian Federation; Turkey

Key features
Lettuce gene pool Tertiary relative
Chromosome number 2n = 18
Habitat Woodlands
Life history Annual; biennial
Breeding system Autogamous
Flower colour Yellow
EURISCO (Dec. 2017) 7 accessions

Morphological description
Plant Height up to 200 cm, tuberous root, simple or branched
Rosette leaves Obovate or lyrate in outline, pinnate-lobed to pinnatifid, narrowed into a long petiole
Stem Erect, branched in the upper part, glabrous
Stem leaves Sessile, ovate to lanceolate in outline, cordate-sagittate at base, non-lobed to pinnatisect with 2-9 pairs of lobes, all thin in texture. Lobes entire or irregularly dentate
Inflorescence Corymbose panicle
Heads Numerous, relatively small. Bracts linear lanceolate, 10-11 mm long, with scarious margins and obtuse apex, often with small backwards orientated appendages and anthocyanin spots. Heads of 8-22 florets. Ligules yellow, longer than involucre
Achenes Obovate, 7-8 mm long, ±1 mm broad, 5-8 ribs, shortly setose at the apex, black. Beak shorter than 1/2 of body. Pappus 5-6 mm long, decidous
Reference Cichorieae Portal - based on Feráková V. (1977) The Genus Lactuca in Europe. Bratislava