25 matching records.
Searching for: genus: Centaurea
Click on the Scientific Name to see a Taxon Report.
Centaurea babylonica

non-native
Perennial herb
Syrian knapweed
no photo
Centaurea benedicta formerly Cnicus benedictus

non-native
Annual herb
Blessed thistle
Centaurea benedicta
© 2009 Neal Kramer
Centaurea benedicta
© 2008 Luigi Rignanese
Centaurea benedicta
© 2006 Chris Wagner, SBNF
Centaurea calcitrapa

invasive non-native
Annual, Perennial herb
Purple star thistle,
Red star thistle
Centaurea calcitrapa
© 2005 Luigi Rignanese
Centaurea calcitrapa
© 2008 Jennifer Buck
Centaurea calcitrapa
© 2009 Barry Rice
Centaurea calcitrapoides

non-native
Annual, Perennial herb
Smallhead star thistle
no photo
Centaurea cineraria

non-native
Perennial herb
Dusty miller
Centaurea cineraria
© 2001 CDFA
Centaurea cineraria
© 2001 CDFA
Centaurea cineraria
© 2001 CDFA
Centaurea cyanus

non-native
Annual herb
Batchelor button,
Garden cornflower
Centaurea cyanus
© 2009 Neal Kramer
Centaurea cyanus
© 2011 Louis-M. Landry
Centaurea cyanus
© 2011 Louis-M. Landry
Centaurea debeauxii

invasive non-native
Annual, Perennial herb
Meadow knapweed
Centaurea debeauxii
© Charles Webber 2000 California Academy of Sciences
Centaurea diffusa

invasive non-native
Perennial herb
Diffuse knapweed,
White knapweed
Centaurea diffusa
© 2001 CDFA
Centaurea diffusa
© 2002 Molly Elizabeth Bagley
Centaurea diffusa
© 2001 CDFA
Centaurea diluta

non-native
Annual herb
North African knapweed,
Star thistle
Centaurea diluta
© 2013 Ron Vanderhoff
Centaurea diluta
© 2015 Ron Vanderhoff
Centaurea diluta
© 2015 Ron Vanderhoff
Centaurea eriophora

non-native
Perennial herb
Wild sandheath
no photo
Centaurea iberica

non-native
Perennial herb
Iberian knapweed
Centaurea iberica
© 2001 CDFA
Centaurea iberica
© 2001 CDFA
Centaurea iberica
© 2001 CDFA
Centaurea jacea

non-native
Perennial herb
Brownray knapweed,
Brown knapweed
Centaurea jacea
© 2008 Zoya Akulova
Centaurea jacea
© 2005 Dr. Amadej Trnkoczy
Centaurea jacea
© 2005 Dr. Amadej Trnkoczy
Centaurea jacea ssp. jacea

non-native
Perennial herb
Brown knapweed
Centaurea jacea ssp. jacea
© 2005 Dr. Amadej Trnkoczy
Centaurea jacea ssp. jacea
© 2005 Dr. Amadej Trnkoczy
Centaurea jacea ssp. jacea
© 2005 Dr. Amadej Trnkoczy
Centaurea jacea ssp. nigra formerly Centaurea nigra

non-native
Perennial herb
Black knapweed
Centaurea jacea ssp. nigra
© 2005 Louis-M. Landry
Centaurea jacea ssp. nigra
© 2005 Louis-M. Landry
Centaurea jacea ssp. nigra
© 2009 Phil Pullen
Centaurea jacea ssp. pratensis

non-native
Annual, Perennial herb
Meadow knapweed
Centaurea jacea ssp. pratensis
© 2011 Jean Pawek
Centaurea jacea ssp. pratensis
© 2011 Jean Pawek
Centaurea jacea ssp. pratensis
© 2014 Richard Spellenberg
Centaurea melitensis

invasive non-native
Annual herb
Maltese star thistle,
Napa star thistle
Centaurea melitensis
© 2005 James M. Andre
Centaurea melitensis
© 2007 Neal Kramer
Centaurea melitensis
© 2008 Keir Morse
Centaurea nigrescens

non-native
Perennial herb
Tyrol knapweed
Centaurea nigrescens
© 2008 Keir Morse
Centaurea nigrescens
© 2008 Keir Morse
Centaurea nigrescens
© 2008 Keir Morse
Centaurea pouzinii

non-native
Perennial herb
Pouzin's star-thistle
no photo
Centaurea solstitialis

invasive non-native
Annual herb
Barnaby's thistle,
Yellow star thistle
Centaurea solstitialis
© 2004 Carol W. Witham
Centaurea solstitialis
© 2008 Luigi Rignanese
Centaurea solstitialis
© 2014 Robert F Norris
Centaurea stoebe

non-native
Perennial herb
Spotted knapweed
Centaurea stoebe
© 2011 Dr.Thomas K. Voekler
Centaurea stoebe
© 2009 Barry Breckling
Centaurea stoebe
© 2012 Zoya Akulova
Centaurea stoebe ssp. micranthos formerly Centaurea maculosa

invasive non-native
Perennial herb
Spotted knapweed
Centaurea stoebe ssp. micranthos
© 2005 Louis-M. Landry
Centaurea stoebe ssp. micranthos
© 2012 Zoya Akulova
Centaurea stoebe ssp. micranthos
© 2012 Zoya Akulova
Centaurea sulphurea

non-native
Annual herb
Sicilian star thistle,
Sulphur knapweed
Centaurea sulphurea
© 2001 CDFA
Centaurea sulphurea
© 2001 CDFA
Centaurea sulphurea
© 2001 CDFA
Centaurea virgata

non-native
Perennial herb
Squarrose knapweed
no photo
Centaurea virgata ssp. squarrosa

invasive non-native
Perennial herb
Squarrose knapweed
Centaurea virgata ssp. squarrosa
© 2002 Molly Elizabeth Bagley
Centaurea virgata ssp. squarrosa
© 2001 CDFA
Centaurea ×pouzinii

non-native
Annual, Perennial herb
Pouzin's purple star thistle
no photo
    Suggested Citation
    Calflora: Information on California plants for education, research and conservation. [web application]. 2016. Berkeley, California:
    The Calflora Database [a non-profit organization].
    Available: http://www.calflora.org/   (Accessed: Aug 28, 2016).

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

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