Taxon: Carduus pycnocephalus L.

Genus: Carduus
Family: Asteraceae (alt.Compositae)
  Subfamily: Carduoideae
      Tribe: Cardueae
        Subtribe: Carduinae
Nomen number: 316603
Place of publication: Sp. pl. ed. 2, 2:1151. 1763
Name Verified on: 29-Feb-2012 by ARS Systematic Botanists. Last Changed: 29-Feb-2012
Species priority site is:
Accessions: 0 in National Plant Germplasm System

Common names:

Economic Importance:

  • Harmful organism host: crop diseases (fide E. J. Ryder, 1999)
  • Weed: potential seed contaminant (fide Econ Pl Aust; Invasive Pl Spec)

Distributional Range:


  • Africa

    • Northern Africa: Algeria; Egypt; Libya; Morocco; Tunisia
  • Asia-Temperate

    • Caucasus: Armenia; Azerbaijan; Georgia
    • Western Asia: Afghanistan; Cyprus; Iran; Iraq; Israel; Jordan; Syria; Turkey
  • Asia-Tropical

    • Indian Subcontinent: India - Jammu and Kashmir; Pakistan
  • Europe

    • East Europe: Moldova; Ukraine
    • Middle Europe: Switzerland
    • Southeastern Europe: Albania; Bosnia and Herzegovina; Bulgaria; Croatia; Greece; Italy; Macedonia; Montenegro; Slovenia
    • Southwestern Europe: France; Spain

  • Naturalized:

  • Africa

    • Macaronesia: Portugal - Madeira Islands; Spain - Canary Islands
    • Northeast Tropical Africa: Ethiopia
  • Asia-Temperate

    • Arabian Peninsula: Oman
  • Asia-Tropical

    • Indian Subcontinent: Sri Lanka
  • Australasia

    • Australia: Australia
    • New Zealand: New Zealand
  • Northern America

    • Northeastern U.S.A.: United States - New York, - Pennsylvania
    • Northwestern U.S.A.: United States - Idaho, - Oregon
    • South-Central U.S.A.: United States - Texas
    • Southeastern U.S.A.: United States - Alabama, - Arkansas, - Mississippi, - South Carolina
    • Southwestern U.S.A.: United States - California
  • Pacific

    • North-Central Pacific: United States - Hawaii
  • Southern America

    • Southern South America: Argentina; Chile; Uruguay


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  • Allan, H. H. B. et al. Flora of New Zealand. 1961- (F NZeal)
  • Botanical Society of the British Isles BSBI taxon database (on-line resource). (BSBI)
  • Boulos, L. Flora of Egypt. 1999- (F Egypt)
  • Dassanayake, M. D. & F. R. Fosberg, eds. A revised handbook to the flora of Ceylon. 1980- (F Ceylon)
  • Davis, P. H., ed. Flora of Turkey and the east Aegean islands. 1965-1988 (F Turk)
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  • Ghazanfar, S. A. An annotated catalogue of the vascular plants of Oman. Scripta Botanica Belgica 2. 1992 (L Oman)
  • Groth, D. 2005. pers. comm. (pers. comm.)
  • Hansen, A. & P. Sunding Flora of Macaronesia: checklist of vascular plants, ed. 4. Sommerfeltia vol. 17. 1993 (L Macar ed4)
  • Hedberg, I. & S. Edwards Flora of Ethiopia. 1989- (and Eritrea. 2000) (F Ethiop)
  • Hnatiuk, R. J. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. 1990 (L Aust)
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  • Institute of Pacific Islands Forestry Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). (Pacif I Ecosyst Risk)
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  • Integrated Botanical Information System (IBIS) Australian plant common name database (on-line resource). (Aust Pl Common Names)
  • Izquierdo Z., I. et al., eds. Lista de especies silvestres de Canarias: hongos, plantas y animales terrestres. 2004 (L Canarias)
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  • Komarov, V. L. et al., eds. Flora SSSR. 1934-1964 (F USSR)
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  • Parsons, W. T. & E. G. Cuthbertson Noxious weeds of Australia. 1992 (Noxweed Aust)
  • Rechinger, K. H., ed. Flora iranica. 1963- (F Iran)
  • Ryder, E. J. 1999. Lettuce, endive and chicory Crop Prod. Sci. Hort. 9:134.
  • Seed Regulatory and Testing Division, Agricultural Marketing Service, U.S.D.A. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act (updated annually). (State Noxweed Seed)
  • Sharma, B. D. et al., eds. Flora of India. 1993- (F India)
  • Tutin, T. G. et al., eds. Flora europaea. 1964-1980 (F Eur)
  • Weber, E. Invasive plant species of the world: a reference guide to environmental weeds. 2003 (Invasive Pl Spec)

Check other web resources for Carduus pycnocephalus L. :