Cirsium flodmanii (Rydberg) Arthur (Q3014)

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Cirsium flodmanii is a taxon with the rank species within the genus Cirsium
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English
Cirsium flodmanii (Rydberg) Arthur
Cirsium flodmanii is a taxon with the rank species within the genus Cirsium

    Statements

    taxon/id/Cirsium flodmanii (Rydberg) Arthur
    0 references
    Cirsium flodmanii (Rydberg) Arthur
    Cirsium flodmanii
    (Rydberg) Arthur
    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 de Flodman (French)
    Flodman's thistle (English)
    prairie thistle (English)
    Prairie or Flodman’s thistle (English)
    chardon de Flodman (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. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    1 reference
    Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/
    1 reference
    Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
    Flowering summer (Jun–Sep).
    tallgrass
    mixedgrass
    shortgrass prairies
    meadows
    pastures
    damp soil
    horizontal runner roots that produce root sprouts.
    Stems 1–several, erect, gray or white-tomentose;
    branches 0–few, ascending.
    Leaves: blades oblong-oblanceolate to narrowly elliptic, 4–40 × 1–10 cm, bases usually not decurrent, finely spiny-toothed and undivided to coarsely toothed or deeply pinnatifid, lobes broadly triangular to linear-lanceolate, often revolute-margined, main spines 1–7 mm, abaxial faces white-tomentose, adaxial faces green, thinly tomentose, ± glabrate;
    basal usually absent or withered at flowering, winged petiolate;
    principal cauline proximally winged-petiolate, distally sessile, well distributed, gradually reduced, bases usually not decurrent;
    distal cauline well developed.
    Heads erect, borne singly and terminal on main-stem and branches, or few in corymbiform arrays from distal axils (not subtended by ring of spiny-margined bracts).
    Peduncles 0–5 cm (elevated above distal leaves).
    Involucres ovoid to broadly campanulate, 2–3.5 × 2.5–3.5 cm, thinly arachnoid.
    Phyllaries in 7–12 series, strongly imbricate, greenish with subapical darker central zone, ovate or lanceolate (outer) to linear (inner), abaxial faces with prominent glutinous ridge;
    outer and middle entire, bodies appressed, entire, acute, spines abruptly spreading, slender, 2–4 mm;
    apices of inner spreading, flexuous, narrow, flattened, finely serrulate, ± scabrous.
    Corollas purple (white), 23–36 mm, tubes 12–15 mm, throats 6–8.5 mm, lobes 5–9 mm;
    style tips 4–7 mm.
    Cypselae light-brown, 3–5 mm, apical collars stramineous, 0.5–1 mm;
    pappi (white or tawny) 20–30 mm. 2n = 22, 24.