Calflora: Centaurea stoebe ssp. micranthos

Centaurea stoebe L. ssp. micranthos (Gugler) Hayek

spotted knapweed

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.

The California Invasive Plant Council (Cal-IPC) classifies the potential impact of Centaurea stoebe ssp. micranthos on native ecosystems as high (plant profile).

Community:	escaped cultivar
Elevation:	between 0 and 6562 feet
Family:	ASTERACEAE
Related:	See a list of other species in the genus Centaurea found in California.
	See the more inclusive parent record Centaurea stoebe.

Name Status:

Accepted by TJM2 + PLANTS

Other Names:
(according to)

PLANTS:	Acosta maculosa
PLANTS:	Centaurea biebersteinii
TJM2 + PLANTS:	Centaurea maculosa

Plant
Characteristics
+ Associated
Organisms

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Distribution by County:

See a detailed Distribution Grid of this plant in California.

A shaded county indicates that there are ocurrence records of this plant within the county.

Hover the mouse over the map to see county names. Click to view records from that county.

	There are specimen records from this county in an herbarium.
	There are documented records, vouchered or confirmed by an expert.
	There are reported records.
	There are reported records available indirectly (eg. in botanical literature).

Records by County, with approximate record counts in the form: TOTAL / CCH. Click county name to view records.

Alameda: 1 / 0 CCH Alpine: 19 / 4 CCH Amador: 16 / 0 CCH Butte: 29 / 10 CCH Calaveras: 33 / 3 CCH Colusa: 2 / 0 CCH Del Norte: 25 / 0 CCH El Dorado: 144 / 4 CCH Fresno: 16 / 6 CCH Glenn: 2 / 0 CCH Humboldt: 30 / 0 CCH Inyo: 1 / 0 CCH Kern: 36 / 3 CCH Lassen: 68 / 5 CCH Los Angeles: 12 / 4 CCH Madera: 16 / 4 CCH Mendocino: 26 / 4 CCH Mono: 26 / 6 CCH Monterey: 5 / 1 CCH Modoc: 44 / 1 CCH Mariposa: 102 / 1 CCH Napa: 1 / 0 CCH Nevada: 79 / 13 CCH Placer: 82 / 16 CCH Plumas: 92 / 7 CCH Sacramento: 1 / 0 CCH San Bernardino: 11 / 5 CCH Santa Clara: 3 / 1 CCH San Diego: 18 / 10 CCH Shasta: 106 / 3 CCH Sierra: 13 / 1 CCH Siskiyou: 144 / 10 CCH Sonoma: 9 / 2 CCH Tehama: 12 / 1 CCH Trinity: 36 / 2 CCH Tuolumne: 18 / 3 CCH Ventura: 4 / 1 CCH Yuba: 1 / 0 CCH

CCH: records provided by the participants of the Consortium of California Herbaria.

Information about Centaurea stoebe ssp. micranthos from other sources:

Photos on Picasa / Flickr / Google Images
website references on Google
USDA PLANTS Profile (CESTM)

2012 Jepson Manual Treament from the Jepson Herbarium,
University of California, Berkeley
Search efloras.org (Flora of North America)
Search the Lady Bird Johnson Wildflower Center Native Plant Database