Carduus Linnaeus (Q2980)
Carduus is a taxon with the rank genus within the tribe Cardueae
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Carduus Linnaeus
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Carduus is a taxon with the rank genus within the tribe Cardueae
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Statements
taxon/id/Carduus Linnaeus
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Carduus Linnaeus
Carduus
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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Stems erect, simple to much branched, (spiny-winged).
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petiolate or sessile;
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blade margins spiny dentate, often 1–2-pinnately lobed, faces glabrous or hairy, eglandular.
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Heads discoid, borne singly or 2–20 in dense clusters or corymbiform arrays.
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(Peduncles naked or leafy-bracteate, spiny-winged or not winged.) Involucres cylindric to spheric.
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Phyllaries many in 7–10+ series, linear to broadly ovate, bases appressed, margins entire, apices ascending to spreading or reflexed, acute, spine-tipped.
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Receptacles flat, epaleate, bearing setiform scales (“flattened bristles”).
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Florets several–many;
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corollas white to pink or purple, ± bilateral, tubes long, slender, throats short, campanulate, abruptly expanded from tubes, lobes linear;
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anther bases sharply short-tailed, apical appendages oblong;
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style-branches: fused portions with slightly, minutely puberulent, swollen basal nodes, distally papillate or glabrous, distinct portions very short.
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Cypselae ovoid, slightly compressed, faces smooth, glabrous, attachment scars slightly lateral;
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pappi persistent or falling in rings, of many minutely barbed, basally connate bristles or setiform, minutely barbed scales (“minutely flattened bristles”).
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x = 8, 9, 10, 11, 13.
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puberulent
slightly; minutely
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