Carduus nutans Linnaeus (Q2985)

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

    Statements

    taxon/id/Carduus nutans Linnaeus
    0 references
    Carduus nutans Linnaeus
    Carduus nutans
    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
    nodding thistle (English)
    musk thistle (English)
    nodding plumeless thistle (English)
    chardon penché (French)
    Musk or nodding thistle (English)
    chardon penché (English)
    Flowering late spring–summer (May–Sep).
    aggressive weed
    waste ground
    pastures
    roadsides
    Eurasia
    Stems glabrous to tomentose;
    teeth of wings to 10 mm, wing spines 2–10 mm.
    Leaves: basal tapering to winged petioles, blades 10–40 cm, margins 1–2×-pinnately lobed;
    cauline sessile, shorter, margins less divided, glabrous or ± hairy.
    Heads borne singly or in corymbiform arrays, sometimes a few axillary, at least terminal head usually conspicuously pedunculate, often nodding, 20–40 mm.
    Peduncles 2–30 cm, unwinged distally or throughout, finely tomentose.
    Involucres hemispheric, 20–60 mm × 20–70 mm.
    Phyllaries lanceolate to ovate, outer and middle with appressed bases 2–4 mm wide and spreading to reflexed, appendages 2–7 mm wide, proximally glabrous or ± tomentose, distally glabrous to minutely scabridulous, spine tips 1–4 mm, inner phyllaries with unarmed, straight or twisted tips.
    Corollas purple, 15–28 mm, lobes 2.5–3 times longer than throat.
    Cypselae golden to brown, 4–5 mm;
    pappus bristles 13–25 mm. 2n = 16.