Taxon  Report   9791 
Centaurea stoebe  L.  ssp. micranthos  (Gugler) Hayek
Spotted knapweed
Centaurea stoebe ssp. micranthos
© 2012 Zoya Akulova
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Centaurea stoebe ssp. micranthos
© 2012 Zoya Akulova
Centaurea stoebe ssp. micranthos, a dicot, is a perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.
It is an invasive plant. The California Invasive Plant Council classifies its potential impact on native ecosystems as high (plant profile / CalWeedMapper).

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Observation Hotline
(observation details + photos)



point, line, or polygon

one or more occurrences within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Centaurea stoebe ssp. micranthos
© 2005 Louis-M. Landry
Family: ASTERACEAE  
Genus: Centaurea
Parent Record Centaurea stoebe
Community:
escaped cultivar
Distribution by County 

Add an Observation of  Centaurea stoebe ssp. micranthos

Name Status:
Accepted by TJM2 + PLANTS
Alternate Names:
(according to)

PLANTS: Acosta maculosa
PLANTS: Centaurea biebersteinii
TJM2 + PLANTS: Centaurea maculosa
More information about  Centaurea stoebe ssp. micranthos
Photos on CalPhotos / Google Images

FEIS: DISTRIBUTION AND OCCURRENCE:  "Spotted knapweed is native to eastern Europe, though it now occurs in western and central Europe. It was introduced to North America, probably as a contaminant in alfalfa (Medicago sativa) seed and/or ship's ballast, in the late 1800s ... . In 1920, the distribution of spotted knapweed in North America was limited to the San Juan Islands, Washington."

Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (CESTM)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/   (Accessed: Feb 14, 2016).

The information on this page comes from diverse sources. None of the links are sponsored.