Sonchus palustris Linnaeus (Q3166)
Sonchus palustris is a taxon with the rank species within the genus Sonchus
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Sonchus palustris Linnaeus
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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
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CA-ON
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Stem-bases hard, sometimes ± woody.
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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).
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Peduncles usually setose to stipitate-glandular.
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Involucres 9–13+ mm.
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Phyllaries sparsely to densely setose to stipitate-glandular.
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Corollas: ligules ± equaling tubes.
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Cypselae stramineous, oblong to ellipsoid, 3.5–4 mm, ribs 4–5 on each face, faces transversely rugulose or tuberculate across and between ribs;
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pappi 7–9 mm. 2n = 18.
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usually setose
stipitate-glandular
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