Taxon: Carduus spp.*

• the 6 historical accession(s) associated with this name.
• 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:

AR*, DE°, HI°, IA*, MD*°, TN°, VA°.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• thistle   (Source: State Noxweed Seed ) – English
  

Economic importance:

• Weed   (fide State Noxweed Seed)
  

References:

• 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.

More:

Search AGRICOLA article citation database for citations referencing Carduus spp..

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

Search Biodiversity Heritage Library for historical publications referencing Carduus spp..

Check other web resources for Carduus spp.:

• 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.

Check other web resources for images:

• PlantSystematics.org
• 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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