Centaurea diffusa Lamarck in J. Lamarck et al. (Q2995)

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Centaurea diffusa is a taxon with the rank species within the genus Centaurea
Language Label Description Also known as
English
Centaurea diffusa Lamarck in J. Lamarck et al.
Centaurea diffusa is a taxon with the rank species within the genus Centaurea

    Statements

    taxon/id/Centaurea diffusa Lamarck
    0 references
    Centaurea diffusa Lamarck
    Centaurea diffusa
    Lamarck
    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
    centaurée diffuse (French)
    diffuse knapweed (English)
    white knapweed (English)
    tumble knapweed (English)
    Diffuse or tumble or white knapweed (English)
    centaurée diffuse (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
    Herbier Marie-Victorin (MT). Université de Montréal, Montréal, QC. Specimen. http://www.biodiversite.umontreal.ca/herbier-marie-victorin?lang=en
    1 reference
    Bennett, B. Yukon List. (pers. comm.)
    Europe
    Flowering summer (Jun–Aug).
    grasslands
    woodlands
    open coniferous forests
    Stems 1–several, much-branched throughout, puberulent and ± gray tomentose.
    Leaves hispidulous and ± short-tomentose;
    basal and proximal cauline petiolate, often absent at anthesis, blades 10–20 cm, margins bipinnately dissected into narrow lobes;
    mid cauline sessile, bipinnately dissected;
    distal much smaller, entire or pinnately lobed.
    Heads disciform, in open paniculiform arrays.
    Involucres narrowly ovoid or cylindric, 10–13 × 3–5 mm.
    Principal phyllaries: bodies pale green, ovate to lanceolate, glabrous or finely tomentose, with a few prominent parallel veins, margins and erect appendages fringed with slender stramineous spines, each phyllary tipped by spine 1–3 mm.
    Inner phyllaries lanceolate, ± acute, appendage lacerate or spine-tipped.
    corollas cream white (rarely pink or pale-purple), those of sterile florets 12–13 mm, slender, inconspicuous, those of fertile florets 12–13 mm.
    Cypselae dark-brown, ca. 2–3 mm;