Showing records 1 - 50 out of  54 matching records.
Searching for: genus: Cirsium
Click on the Scientific Name to see a Taxon Report.
Cirsium andersonii

native
Perennial herb
Anderson's thistle,
Rose thistle
Cirsium andersonii
© 2006 Matt Below
Cirsium andersonii
© 2010 John Dittes
Cirsium andersonii
© 2009 Keir Morse
Cirsium andrewsii

native
Perennial herb
Franciscan thistle
Cirsium andrewsii
© 2011 Thomas Reyes
Cirsium andrewsii
© 2011 Thomas Reyes
Cirsium andrewsii
© 2011 Thomas Reyes
Cirsium arizonicum

native
Perennial herb
Arizona thistle
Cirsium arizonicum
© 2007 Steven Thorsted
Cirsium arizonicum
© 2007 Steven Thorsted
Cirsium arizonicum var. arizonicum

native
Perennial herb
Arizona thistle
Cirsium arizonicum var. arizonicum
© 2012 Dylan Neubauer
Cirsium arizonicum var. arizonicum
© 2012 Dylan Neubauer
Cirsium arizonicum var. tenuisectum

native
Perennial herb
Desert mountain thistle
Cirsium arizonicum var. tenuisectum
© 2009 James M. Andre
Cirsium arizonicum var. tenuisectum
© 2009 James M. Andre
Cirsium arvense

invasive non-native
Perennial herb
Canada thistle
Cirsium arvense
© 2008 Keir Morse
Cirsium arvense
© 2007 Luigi Rignanese
Cirsium arvense
© 2009 Phil Pullen
Cirsium brevistylum

native
Perennial herb
Clustered thistle,
Indian thistle
Cirsium brevistylum
© 2007 Neal Kramer
Cirsium brevistylum
© 2008 Zoya Akulova
Cirsium brevistylum
© 2010 Robert Steers/NPS
Cirsium canescens

non-native
Perennial herb
Prairie thistle
Cirsium canescens
© 2010 Lee Dittmann
Cirsium canescens
© 2008 Zoya Akulova
Cirsium ciliolatum

native
Perennial herb
Ashland thistle
no photo
Cirsium crassicaule

native
Annual, Perennial herb
Slough thistle
no photo
Cirsium cymosum

native
Perennial herb
Peregrine thistle
Cirsium cymosum
© 2009 Keir Morse
Cirsium cymosum
© 2009 Keir Morse
Cirsium cymosum
© 2009 Julie Kierstead Nelson
Cirsium cymosum var. canovirens

native
Perennial herb
Gray-green thistle
Cirsium cymosum var. canovirens
© 2005 Steve Tyron
Cirsium cymosum var. canovirens
© 2005 Steve Tyron
Cirsium cymosum var. cymosum

native
Perennial herb
Peregrine thistle
Cirsium cymosum var. cymosum
© 2014 Neal Kramer
Cirsium cymosum var. cymosum
© 2013 Aaron Arthur
Cirsium cymosum var. cymosum
© 2013 Aaron Arthur
Cirsium douglasii

native
Perennial herb
Douglas' thistle,
Swamp thistle
Cirsium douglasii
© 2011 Aaron Arthur
Cirsium douglasii
© 2010 John Dittes
Cirsium douglasii
© 2010 Sangeet Khalsa
Cirsium douglasii var. breweri

native
Perennial herb
Brewer's swamp thistle,
Douglas' thistle
Cirsium douglasii var. breweri
© 2010 John Dittes
Cirsium douglasii var. breweri
© 2010 Sangeet Khalsa
Cirsium douglasii var. breweri
© 2010 Sangeet Khalsa
Cirsium douglasii var. douglasii

native
Perennial herb
Douglas' swamp thistle,
Douglas' thistle
Cirsium douglasii var. douglasii
© 2006 Matt Below
Cirsium douglasii var. douglasii
© 2013 Neal Kramer
Cirsium douglasii var. douglasii
© 2008 Neal Kramer
Cirsium fontinale

native
Perennial herb
Fountain thistle
Cirsium fontinale
© 2007 Neal Kramer
Cirsium fontinale
© 2012 Lech Naumovich
Cirsium fontinale
© 2009 Tom Cochrane
Cirsium fontinale var. campylon

native
Perennial herb
Mt hamilton thistle,
Mt. hamilton thistle
Cirsium fontinale var. campylon
© 2004 David A. Tharp
Cirsium fontinale var. campylon
© 2014 Chris Winchell
Cirsium fontinale var. campylon
© 2014 Chris Winchell
Cirsium fontinale var. fontinale

native
Perennial herb
Fountain thistle
Cirsium fontinale var. fontinale
© 2007 Toni Corelli
Cirsium fontinale var. fontinale
© 2011 Scott Cox
Cirsium fontinale var. fontinale
© 2010 Neal Kramer
Cirsium fontinale var. obispoense

native
Perennial herb
Chorro creek bog thistle
Cirsium fontinale var. obispoense
© 2012 Lynn Robertson
Cirsium fontinale var. obispoense
© 2012 Lynn Robertson
Cirsium fontinale var. obispoense
© 2012 Lynn Robertson
Cirsium hydrophilum

native
Perennial herb
Suisun thistle
no photo
Cirsium hydrophilum var. hydrophilum

native
Perennial herb
Suisun thistle
Cirsium hydrophilum var. hydrophilum
© 2010 Doug Wirtz
Cirsium hydrophilum var. hydrophilum
© 2010 Doug Wirtz
Cirsium hydrophilum var. vaseyi

native
Perennial herb
Mt. tamalpais thistle,
Vasey's thistle
Cirsium hydrophilum var. vaseyi
© 1999 John Game
Cirsium hydrophilum var. vaseyi
© 2011 Thomas Reyes
Cirsium hydrophilum var. vaseyi
© 2009 Vernon Smith
Cirsium inamoenum

native
Perennial herb
Greene's thistle
Cirsium inamoenum
© 2013 Barry Breckling
Cirsium inamoenum
© 2014 John Doyen
Cirsium inamoenum
© 2014 Barry Rice
Cirsium inamoenum var. inamoenum

native
Perennial herb
Greene's thistle
Cirsium inamoenum var. inamoenum
© 2012 Gary A. Monroe
Cirsium inamoenum var. inamoenum
© 2012 Gary A. Monroe
Cirsium inamoenum var. inamoenum
© 2012 Gary A. Monroe
Cirsium mohavense

native
Perennial herb
Mohave thistle,
Mojave thistle
Cirsium mohavense
© 2007 Trent M. Draper
Cirsium mohavense
© 2007 Thomas Stoughton
Cirsium mohavense
© 2012 Lynn Robertson
Cirsium neomexicanum

native
Perennial herb
Desert thistle,
New mexico thistle
Cirsium neomexicanum
© 2004 James M. Andre
Cirsium neomexicanum
© 2005 James M. Andre
Cirsium neomexicanum
© 2013 Belinda Lo
Cirsium occidentale

native
Perennial herb
Cobweb thistle,
Western thistle
Cirsium occidentale
© 2006 Chris Wagner, SBNF
Cirsium occidentale
© 2006 Steve Matson
Cirsium occidentale
© 2008 Thomas Stoughton
Cirsium occidentale var. californicum

native
Perennial herb
Bigelow thistle,
California thistle
Cirsium occidentale var. californicum
© 2007 Matt Below
Cirsium occidentale var. californicum
© 2008 Thomas Stoughton
Cirsium occidentale var. californicum
© 2004 Tom Greer tbphotos@comcast.net
Cirsium occidentale var. candidissimum

native
Perennial herb
Snowy thistle
Cirsium occidentale var. candidissimum
© 2002 Gary A. Monroe
Cirsium occidentale var. candidissimum
© 2003 Joseph Dougherty/ecology.org
Cirsium occidentale var. candidissimum
© 2015 Richard Spellenberg
Cirsium occidentale var. compactum

native
Perennial herb
Compact cobwebby thistle
Cirsium occidentale var. compactum
© 2011 Chris Winchell
Cirsium occidentale var. compactum
© 2005 Laura Ann Eliassen
Cirsium occidentale var. compactum
© 2011 Chris Winchell
Cirsium occidentale var. coulteri

native
Perennial herb
Coulter's thistle
no photo
Cirsium occidentale var. lucianum

native
Perennial herb
Cuesta ridge thistle
Cirsium occidentale var. lucianum
© 2009 Zachary Green
Cirsium occidentale var. lucianum
© 2011 Chris Winchell
Cirsium occidentale var. occidentale

native
Perennial herb
Cobweb thistle,
Cobwebby thistle
Cirsium occidentale var. occidentale
© 2011 Dylan Neubauer
Cirsium occidentale var. occidentale
© 2009 Dr. Mark S. Brunell
Cirsium occidentale var. occidentale
© 2009 Dr. Mark S. Brunell
Cirsium occidentale var. venustum

native
Perennial herb
Cobwebby thistle,
Coulter's thistle
Cirsium occidentale var. venustum
© 2004 David A. Tharp
Cirsium occidentale var. venustum
© 2011 Steve Matson
Cirsium occidentale var. venustum
© 2001 Jeff Abbas
Cirsium ochrocentrum

non-native
Perennial herb
Beaumont thistle,
Yellow spined thistle
Cirsium ochrocentrum
© 2004 Robert Sivinski
Cirsium ochrocentrum
© 2001 CDFA
Cirsium ochrocentrum var. ochrocentrum

non-native
Perennial herb
Yellowspine thistle
no photo
Cirsium praeteriens

native
Perennial herb
Palo alto thistle
no photo
Cirsium quercetorum

native
Annual, Perennial herb
Alameda county thistle,
Brownie thistle
Cirsium quercetorum
© 2007 Neal Kramer
Cirsium quercetorum
© 2010 Zoya Akulova
Cirsium quercetorum
© 2010 Robert Steers/NPS
Cirsium remotifolium

native
Perennial herb
Few leaved thistle,
Fewleaf thistle
Cirsium remotifolium
© 2008 Keir Morse
Cirsium remotifolium
© 2008 Keir Morse
Cirsium remotifolium
© 2008 Keir Morse
Cirsium remotifolium var. odontolepis

native
Perennial herb
Pacific fringed thistle
no photo
Cirsium remotifolium var. remotifolium

native
Perennial herb
Remote-leaved thistle
no photo
Cirsium remotifolium var. rivulare

native
Perennial herb
Klamath thistle
no photo
Cirsium rhothophilum

native
Perennial herb
Surf thistle
Cirsium rhothophilum
© 1984 California Native Plant Society
Cirsium rhothophilum
© 1984 California Native Plant Society
Cirsium scabrum

non-native
Perennial herb
Rough thistle
no photo
Cirsium scariosum

native
Perennial herb
Dwarf thistle,
Elk thistle
Cirsium scariosum
© 2008 Neal Kramer
Cirsium scariosum
© 2005 Christopher L. Christie
Cirsium scariosum
© 2015 Richard Spellenberg
Cirsium scariosum var. americanum

native
Perennial herb
Dinnerplate thistle
Cirsium scariosum var. americanum
© 2014 Neal Kramer
Cirsium scariosum var. americanum
© 2013 Robert F Norris
Cirsium scariosum var. americanum
© 2014 Neal Kramer
Cirsium scariosum var. citrinum

native
Perennial herb
Southern meadow thistle
Cirsium scariosum var. citrinum
© 2011 Chris Winchell
Cirsium scariosum var. citrinum
© 2011 Chris Winchell
Cirsium scariosum var. congdonii

native
Perennial herb
Elk thistle
Cirsium scariosum var. congdonii
© 1982 Dean Wm. Taylor
Cirsium scariosum var. congdonii
© 2010 Charles Patterson
Cirsium scariosum var. loncholepis formerly Cirsium loncholepis

native
Perennial herb
La graciosa thistle
Cirsium scariosum var. loncholepis
© 2011 Chris Winchell
Cirsium scariosum var. loncholepis
© 2011 Chris Winchell
Showing records 1 - 50 out of  54 matching records.
    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: Sep 27, 2016).

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

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