Taxon: Carduus pycnocephalus L.

• Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

CA*°, OR*°, WA*.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• Italian thistle   (Source: State Noxweed Seed ) – English
  
• Plymouth thistle   (Source: BSBI ) – English
  
• sheep thistle   (Source: Aust Pl Common Names ) – English
  
• shore thistle   (Source: Noxweed Aust ) – English
  
• slender thistle   (Source: Noxweed Aust ) – English
  
• slender winged thistle   (Source: F NZeal ) – English
  
• slender-flower thistle   (Source: Aust Pl Common Names ) – English
  
• winged slender thistle   (Source: Aust Pl Common Names ) – English
  
• woolly thistle   (Source: Aust Pl Common Names ) – English
  
• lisan el-kalb   (Source: F Egypt ) – Arabic
  
• knaulköpfige Distel   (Source: Zander Ency ) – German
  
• gyttertistel   (Source: Vara kulturvaxt namn ) – Swedish
  

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
  Western Asia: Afghanistan; Cyprus; Iran; Iraq; Israel; Jordan; Syria; Turkey
  Caucasus: Armenia; Azerbaijan; Georgia
• ASIA-TROPICAL
  Indian Subcontinent: India - Jammu and Kashmir; Pakistan
• EUROPE
  Middle Europe: Switzerland
  East Europe: Moldova; Ukraine [incl. Krym]
  Southeastern Europe: Albania; Bosnia and Herzegovina; Bulgaria; Croatia; Greece [incl. Crete]; Italy [incl. Sardinia, Sicily]; Macedonia; Montenegro; Slovenia
  Southwestern Europe: France [incl. Corsica]; Spain [incl. Baleares]

• AFRICA
  Macaronesia: Portugal - Madeira Islands; Spain - Canary Islands
  Northeast Tropical Africa: Ethiopia
• ASIA-TEMPERATE
  Arabian Peninsula: Oman [s.]
• 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
  Southeastern U.S.A.: United States - Alabama, Arkansas, Mississippi, South Carolina
  South-Central U.S.A.: United States - Texas
  Southwestern U.S.A.: United States - California
• PACIFIC
  North-Central Pacific: United States - Hawaii
• SOUTHERN AMERICA
  Southern South America: Argentina; Chile; Uruguay

References:

• Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
• Allan, H. H. B. et al. 1961–. Flora of New Zealand.
• Botanical Society of the British Isles. BSBI taxon database (on-line resource).
• Boulos, L. 1999–. Flora of Egypt.
• Dassanayake, M. D. & F. R. Fosberg, eds. 1980–. A revised handbook to the flora of Ceylon.
• Davis, P. H., ed. 1965–1988. Flora of Turkey and the east Aegean islands.
• Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen.
• Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
• FNA Editorial Committee. 1993–. Flora of North America.
• Ghazanfar, S. A. 1992. An annotated catalogue of the vascular plants of Oman. Scripta Botanica Belgica 2. [= C. australis L. f.].
• Groth, D. 2005. pers. comm. [re. Brazilian common names].
• Hansen, A. & P. Sunding. 1993. Flora of Macaronesia: checklist of vascular plants, ed. 4. Sommerfeltia vol. 17.
• Hedberg, I. & S. Edwards. 1989–. Flora of Ethiopia. (and Eritrea. 2000)
• Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
• Holm, L. et al. 1979. A geographical atlas of world weeds.
• Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource).
• Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares.
• Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).
• Izquierdo Z., I. et al., eds. 2004. Lista de especies silvestres de Canarias: hongos, plantas y animales terrestres.
• Jahandiez, E. & R. Maire. 1931–1941. Catalogue des plantes du Maroc.
• Komarov, V. L. et al., eds. 1934–1964. Flora SSSR.
• Lazarides, M. & B. Hince. 1993. CSIRO Handbook of Economic Plants of Australia.
• Parsons, W. T. & E. G. Cuthbertson. 1992. Noxious weeds of Australia.
• Rechinger, K. H., ed. 1963–. Flora iranica.
• Ryder, E. J. 1999. Lettuce, endive and chicory. Crop Prod. Sci. Hort. 9:134.
• Seed Regulatory and Testing Branch, Agricultural Marketing Service, U.S.D.A. 1999. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act.
• Sharma, B. D. et al., eds. 1993–. Flora of India.
• Tutin, T. G. et al., eds. 1964–1980. Flora europaea.
• Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds.

More:

Search AGRICOLA article citation database for citations referencing Carduus pycnocephalus.

Search NCBI's Entrez search engine for PubMed citations referencing Carduus pycnocephalus.

Search Biodiversity Heritage Library for historical publications referencing Carduus pycnocephalus.

Check other web resources for Carduus pycnocephalus L.:

• Flora Europaea: Database of European Plants (ESFEDS)
• Euro+Med Plantbase: Information Resource for Euro-Mediterranean Plant Diversity
• Flora of North America: Collaborative Floristic Effort of North American Botanists
• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• BONAP: North American Plant Atlas of the Biota of North America Program
• Flora del Conosur: Catálogo de las Plantas Vasculares del Conosur
• AVH: Australia's Virtual Herbarium
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.

Images:

• Forestry Images: Images of invasive weeds from www.forestryimages.org

More:

• Check PlantSystematics.org for additional images
• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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