Centaurea jacea Linnaeus (Q2996)

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

    Statements

    taxon/id/Centaurea jacea Linnaeus
    0 references
    Centaurea jacea Linnaeus
    Centaurea jacea
    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
    centaurée jacée (French)
    jacée des prés (French)
    brown knapweed (English)
    brown-rayed knapweed (English)
    brown starthistle (English)
    meadow knapweed (English)
    Brown or brown-ray knapweed (English)
    centaurée jacée (English)
    jacée des prés (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
    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.
    1 reference
    Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
    Greenland
    Eurasia
    Flowering summer–fall (Jun–Oct).
    roadsides
    fields
    pastures
    waste ground
    Stems 1–few, erect or ascending, openly branched distally, villous to scabrous with septate hairs, loosely tomentose, ± glabrate.
    Leaves: basal and proximal cauline petiolate, blades oblanceolate or elliptic, 5–25 cm, margins entire or shallowly dentate to irregularly pinnately lobed;
    distal cauline sessile, not decurrent, gradually smaller, blades linear to lanceolate, entire or dentate.
    Heads radiant, in few-headed corymbiform arrays, leafy-bracted pedunculate.
    Involucres ovoid to campanulate or hemispheric, 15–18 mm, usually about as wide as high.
    Principal phyllaries: bodies lanceolate to ovate, loosely tomentose or glabrous, usually concealed by expanded appendages, appendages usually light-brown, erect, overlapping, ± concave, usually roundish, margins pale, broad, entire to coarsely dentate, membranous.
    Inner phyllaries: tips truncate, irregularly dentate or lobed.
    Florets 40–100+;
    corollas purple (rarely white), those of sterile florets ± expanded, exceeding corollas of fertile florets, those of fertile florets 15–18 mm.
    Cypselae tan, 2.5–3 mm, finely hairy;