Sonchus palustris Linnaeus (Q3166)

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Sonchus palustris is a taxon with the rank species within the genus Sonchus
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English
Sonchus palustris Linnaeus
Sonchus palustris is a taxon with the rank species within the genus Sonchus

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    taxon/id/Sonchus palustris Linnaeus
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    Sonchus palustris Linnaeus
    Sonchus palustris
    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
    laiteron des marais (French)
    marsh sow-thistle (English)
    Marsh sow-thistle (English)
    Flowering Jul–Sep.
    disturbed
    marshy sites
    wet roadside ditches
    peaty sand
    railroad ditches
    wet fields
    0–100 m
    Stem-bases hard, sometimes ± woody.
    Leaves: blades of mid cauline oblong to lanceolate or linear, 15–20+ × 2–3 (–8+) cm, bases auriculate, auricles lanceolate to linear, ± straight, acute, margins sometimes pinnately lobed, lobes ± deltate to lanceolate or linear (not constricted at bases), terminals usually larger than laterals, entire or dentate (teeth not notably prickly).
    Peduncles usually setose to stipitate-glandular.
    Involucres 9–13+ mm.
    Phyllaries sparsely to densely setose to stipitate-glandular.
    Corollas: ligules ± equaling tubes.
    Cypselae stramineous, oblong to ellipsoid, 3.5–4 mm, ribs 4–5 on each face, faces transversely rugulose or tuberculate across and between ribs;
    pappi 7–9 mm. 2n = 18.