Centaurea nigra Linnaeus (Q3000)

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Centaurea nigra is a taxon with the rank species within the genus Centaurea
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English
Centaurea nigra Linnaeus
Centaurea nigra is a taxon with the rank species within the genus Centaurea

    Statements

    taxon/id/Centaurea nigra Linnaeus
    0 references
    Centaurea nigra Linnaeus
    Centaurea nigra
    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 noire (French)
    black knapweed (English)
    lesser knapweed (English)
    black starthistle (English)
    Spanish buttons (English)
    hardheads (English)
    Black knapweed (English)
    lesser knapweed (English)
    centaurée noire (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.
    1 reference
    Catling, P.M., D.S. Erskine & R.B. MacLaren. 1985. The Plants of Prince Edward Island with new records, nomenclatural changes, and corrections and deletions. Agriculture Canada, Research Branch, Ottawa. Publication 1798. 272 pp.
    1 reference
    Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
    Newfoundland, CA
    1 reference
    Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm
    1 reference
    Etcheberry, R. 1989. Plantes de Saint-Pierre et Miquelon. Unpublished list (MT).
    St. Pierre and Miquelon
    Europe
    Flowering summer–fall (Jun–Oct).
    roadsides
    fields
    clearings
    waste areas
    0–300 m
    Stems 1–few, erect or ascending, openly branched distally, villous to scabrous with septate hairs and 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 discoid, in few-headed corymbiform arrays, borne on leafy-bracted peduncles.
    Involucres ovoid to campanulate or hemispheric, 15–18 mm, usually ± as wide as high.
    Principal phyllaries: bodies lanceolate to ovate, loosely tomentose or glabrous, bases usually ± concealed by expanded appendages, appendages erect, overlapping, dark-brown to black, flat, margins pectinately dissected into numerous wiry lobes.
    Inner phyllaries: tips truncate, irregularly dentate or lobed.
    Florets 40–100+, all fertile;
    corollas purple (rarely white), 15–18 mm.
    Cypselae tan, 2.5–3 mm, finely hairy;
    pappi of many blackish, unequal, sometimes deciduous bristles 0.5–1 mm. 2n = 22, 44.