Lactuca virosa Linnaeus (Q3134)

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Lactuca virosa is a taxon with the rank species within the genus Lactuca
Language Label Description Also known as
English
Lactuca virosa Linnaeus
Lactuca virosa is a taxon with the rank species within the genus Lactuca

    Statements

    taxon/id/Lactuca virosa Linnaeus
    0 references
    Lactuca virosa Linnaeus
    Lactuca virosa
    Linnaeus
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
    accepted
    laitue vireuse (French)
    bitter lettuce (English)
    1 reference
    Scoggan, H.J. 1978-79. The Flora of Canada. Parts 1-4. National Museum of Natural Sciences, Publications in Botany 7. 4 volumes.
    Europe
    Flowering May, Oct.
    disturbed sites
    blades of undivided cauline leaves obovate to spatulate, margins denticulate, midribs usually prickly-setose.
    Heads in paniculiform arrays.
    Involucres 12–15 mm.
    Phyllaries usually reflexed in fruit.
    corollas yellow, usually deliquescent.
    Cypselae: bodies purplish to blackish, ± flattened, ± elliptic, 3.5–4 mm, beaks ± filiform, 2.5–3.5 mm, faces 5–7-nerved;
    pappi white, 5–6 mm. 2n = 18.