Cirsium foliosum (Hooker) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle (Q3015)

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Cirsium foliosum is a taxon with the rank species within the genus Cirsium
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English
Cirsium foliosum (Hooker) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
Cirsium foliosum is a taxon with the rank species within the genus Cirsium

    Statements

    taxon/id/Cirsium foliosum (Hooker) de Candolle
    0 references
    Cirsium foliosum (Hooker) de Candolle
    Cirsium foliosum
    (Hooker) de Candolle
    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
    chardon multifeuille (French)
    leafy thistle (English)
    foliose thistle (English)
    elk thistle (English)
    Leafy or foliose or elk thistle (English)
    1 reference
    Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    Harms, V.L. 2003. Checklist of the Vascular Plants of Saskatchewan and the provincially and nationally rare native plants in Saskatchewan. University of Saskatchewan, University Extension Press.
    1 reference
    Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
    1 reference
    Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.
    Flowering summer (Jul–Aug).
    moist soil
    grasslands
    meadows
    openings
    boreal forest
    subalpine forests
    alpine slopes
    150–2600 m
    Stems usually 1, erect, stout, ± fleshy, simple, very leafy, densely villous or tomentose with septate trichomes.
    Leaves: blades linear-oblong to oblanceolate (elliptic), 5–20 (–25) × 1–4 (–7) cm, subentire to dentate or pinnatifid, lobes lance-oblong to triangular, spinulose to spiny-dentate or shallowly lobed, main spines slender, 2–5 (–10) mm, abaxial faces often thinly gray or white-tomentose with felted arachnoid trichomes, ± villous along major veins with septate trichomes, adaxial green, glabrous to thinly arachnoid, often ± villous with septate trichomes;
    basal usually present at flowering, spiny winged-petiolate or sessile;
    principal cauline well distributed, proximally winged-petiolate, distally sessile, not or only slightly reduced;
    distal often narrower than proximal.
    Heads few–many, erect, sessile or subsessile, crowded in dense, woolly, leafy-bracted, subcapitate arrays, closely subtended and overtopped by crowded leafy bracts.
    Peduncles 0–1 cm.
    Involucres broadly ovoid, 2–2.5 × 1.5–2 cm, green, glabrous to densely villous with septate trichomes on margins.
    Phyllaries in 4–6 series, imbricate, lanceolate or ovate (outer) to linear-lanceolate (inner), bases appressed, margins of outer entire, abaxial faces without glutinous ridge, apices appressed to ascending, spines straight, slender, 2–3 mm;
    apices of inner erect, straight.
    Corollas white to pale-pink, 21–25 mm, tubes 12–14 mm, throats (very slender, scarcely larger than tubes) 6–7 mm, lobes 3–4 mm;
    style tips 2.5–3 mm, short exserted.
    Cypselae light-brown, 4–5.5 mm, apical collars yellow, narrow;