Taxon: Centaurea stoebe L. subsp. micranthos (Gugler) Hayek

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:

AZ(as Centaurea maculosa)*°, CA(as Centaurea maculosa)*, CO(as Centaurea maculosa)*°, CT(as Centaurea biebersteinii)*, ID(as Centaurea maculosa)*°, MA(as Centaurea biebersteinii)*, MI(as Centaurea maculosa)*°, MT(as Centaurea maculosa)*°, ND(as Centaurea maculosa)*°, NE(as Centaurea maculosa)*°, NM(as Centaurea maculosa)*, NV(as Centaurea maculosa)*, OR(as Centaurea maculosa)*°, SD(as Centaurea maculosa)*°, UT(as Centaurea maculosa)*°, WA(as Centaurea biebersteinii)*, WA(as Centaurea maculosa)°, WY°.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Link to species profile at

See other conspecific taxa:

• Centaurea stoebe (no accessions)
• Centaurea stoebe subsp. serbica (no accessions)
• Centaurea stoebe subsp. stoebe (no accessions)

Common names:

• spotted knapweed   (Source: Proc Knapweed Symp ) – English
  
• Kleinköpfige Rispen-Flockenblume   (Source: Zander ed16 ) – German
  
• centáurea-manchada   (Source: D. Groth, p.c. 2005 [as C. maculosa]) – Portuguese (Brazil)
  

Economic importance:

• Weed: also potential seed contaminant   (fide Rep NCEPPC, as C. maculosa)
  

More:

View ethnobotanical data from Moerman's Native American Ethnobotany Database

Distributional range:

• EUROPE
  Middle Europe: Austria [e.]; Hungary; Slovakia
  East Europe: Moldova; Russian Federation - European part [s.]; Ukraine
  Southeastern Europe: Bulgaria; Former Yugoslavia; Macedonia; Romania; Slovenia

• EUROPE
  Europe [widely natzd. elsewhere]
• NORTHERN AMERICA (Check conservation status in U.S. & Canada in NatureServe Explorer database)
  Canada
  United States

References:

• Erhardt, W. et al. 2000. Zander: Handwörterbuch der Pflanzennamen, 16. Auflage. (Zander ed16)
• FNA Editorial Committee. 1993–. Flora of North America. (F NAmer)
• Groth, D. 2005. pers. comm. [re. Brazilian common names].
• Ochsmann, J. 2000. Morphologische und molekularsystematische Untersuchungen an der Centaurea stoebe L.-Gruppe (Asteraceae-Cardueae) in Europa. Diss. Bot. 324:69–72.
• Ochsmann, J. 2001. Knapweeds (Centaurea L. and some related genera) in North America. In: Ochsmann, J., Welcome to the Centaurea pages. (Centaurea Pages)
• Ochsmann, J. 2001. On the taxonomy of spotted knapweed (Centaurea stoebe L.). In: Smith, L., ed., Proceedings of the First International Knapweed Symposium of the Twenty-first Century, 15-16 March 2001, Coeur d'Alene, Idaho. (Proc Knapweed Symp) 38.
• USDA National Agricultural Library. National Invasive Species Information Center (Nat Invasive Sp Info)

Synonyms:

• (=) Centaurea biebersteinii auct.
  
• (=) Centaurea maculosa auct. Amer.
  
• (≡) Centaurea maculosa subsp. micranthos Gugler (basionym)
  

Check other databases for Centaurea stoebe L. subsp. micranthos (Gugler) Hayek:

• 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
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden

Images:

• Forestry Images: Images of invasive weeds from www.forestryimages.org
• Fruits: U.S. National Seed Herbarium image
• Fruits: Seed ID Workshop image, from Department of Horticulture and Crop Science, Ohio State University

More:

• 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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