Plant Search Results
  
Showing records 1 - 50 out of  54 matching records.
Searching for: genus: Cirsium
Click on the Scientific Name to see a Taxon Report.
Scientific Name Common NameStatus Lifeform

Cirsium andersonii

rose thistle, Anderson's thistle native Perennial herb
Cirsium andersonii
© 2006 Matt Below
Cirsium andersonii
© 2010 John Dittes

Cirsium andrewsii

Franciscan thistle native
RARE SPECIES
Perennial herb
Cirsium andrewsii
© 2011 Thomas Reyes
Cirsium andrewsii
© 2011 Thomas Reyes

Cirsium arizonicum

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

Cirsium arizonicum var. arizonicum

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

Cirsium arizonicum var. tenuisectum

desert mountain thistle native
RARE SPECIES
Perennial herb
Cirsium arizonicum var. tenuisectum
© 2009 James M. Andre
Cirsium arizonicum var. tenuisectum
© 2009 James M. Andre

Cirsium arvense

Canada thistle not native INVASIVE WEED Perennial herb
Cirsium arvense
© 2008 Keir Morse
Cirsium arvense
© 2007 Luigi Rignanese
Cirsium arvense
© 2009 Phil Pullen

Cirsium brevistylum

clustered thistle, Indian thistle native Perennial herb
Cirsium brevistylum
© 2007 Neal Kramer
Cirsium brevistylum
© 2008 Zoya Akulova

Cirsium canescens

Prairie thistle not native Perennial herb
Cirsium canescens
© 2010 Lee Dittmann
Cirsium canescens
© 2008 Zoya Akulova

Cirsium ciliolatum

Ashland thistle native
RARE SPECIES
Perennial herb
no photo

Cirsium crassicaule

slough thistle native
RARE SPECIES
Annual, Perennial herb
no photo

Cirsium cymosum

peregrine thistle native Perennial herb
Cirsium cymosum
© 2009 Keir Morse
Cirsium cymosum
© 2009 Julie Kierstead Nelson

Cirsium cymosum var. canovirens

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

Cirsium cymosum var. cymosum

Peregrine thistle native Perennial herb
Cirsium cymosum var. cymosum
© 2013 Aaron Arthur
Cirsium cymosum var. cymosum
© 2013 Aaron Arthur

Cirsium douglasii

Douglas' thistle, swamp thistle native Perennial herb
Cirsium douglasii
© 2011 Aaron Arthur
Cirsium douglasii
© 1998 James B. Gratiot

Cirsium douglasii var. breweri

Douglas' thistle, Brewer's swamp thistle native Perennial herb
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

Douglas' thistle, Douglas' swamp thistle native Perennial herb
Cirsium douglasii var. douglasii
© 2006 Matt Below
Cirsium douglasii var. douglasii
© 2009 Zoya Akulova

Cirsium fontinale

fountain thistle native Perennial herb
Cirsium fontinale
© J. E.(Jed) and Bonnie McClellan 1999 California Academy of Sciences
Cirsium fontinale
© 2009 Tom Cochrane

Cirsium fontinale var. campylon

Mt Hamilton thistle, Mt. Hamilton thistle native
RARE SPECIES
Perennial herb
Cirsium fontinale var. campylon
© 2007 Neal Kramer
Cirsium fontinale var. campylon
© 2007 Neal Kramer

Cirsium fontinale var. fontinale

fountain thistle native
RARE SPECIES
Perennial herb
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

Chorro Creek Bog thistle native
RARE SPECIES
Perennial herb
Cirsium fontinale var. obispoense
© 1984 California Native Plant Society
Cirsium fontinale var. obispoense
© 2005 Dieter Wilken

Cirsium hydrophilum

Suisun thistle native Perennial herb
no photo

Cirsium hydrophilum var. hydrophilum

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

Cirsium hydrophilum var. vaseyi

Vasey's thistle, Mt. Tamalpais thistle native
RARE SPECIES
Perennial herb
Cirsium hydrophilum var. vaseyi
© 1999 John Game
Cirsium hydrophilum var. vaseyi
© 2009 Vernon Smith

Cirsium inamoenum

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

Cirsium inamoenum var. inamoenum

Greene's thistle native Perennial herb
Cirsium inamoenum var. inamoenum
© 2005 Steve Tyron
Cirsium inamoenum var. inamoenum
© 2005 Steve Tyron

Cirsium mohavense

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

Cirsium neomexicanum

New Mexico thistle, desert thistle native Perennial herb
Cirsium neomexicanum
© 2004 James M. Andre
Cirsium neomexicanum
© 2004 Robert Sivins

Cirsium occidentale

western thistle, Cobweb Thistle native Perennial herb
Cirsium occidentale
© 2006 Chris Wagner, SBNF
Cirsium occidentale
© 2006 Steve Matson

Cirsium occidentale var. californicum

cobwebby thistle, California thistle, Bigelow Thistle native Perennial herb
Cirsium occidentale var. californicum
© 2007 Matt Below
Cirsium occidentale var. californicum
© 2008 Thomas Stoughton

Cirsium occidentale var. candidissimum

snowy thistle native Perennial herb
Cirsium occidentale var. candidissimum
© 2002 Gary A. Monroe
Cirsium occidentale var. candidissimum
© 2003 Joseph Dougherty/ecology.org

Cirsium occidentale var. compactum

compact cobwebby thistle native
RARE SPECIES
Perennial herb
Cirsium occidentale var. compactum
© 2005 Laura Ann Eliassen
Cirsium occidentale var. compactum
© 2005 Laura Ann Eliassen

Cirsium occidentale var. coulteri

Coulter's thistle native Perennial herb
no photo

Cirsium occidentale var. lucianum

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

Cirsium occidentale var. occidentale

cobwebby thistle, Cobweb Thistle native Perennial herb
Cirsium occidentale var. occidentale
© 2011 Dylan Neubauer
Cirsium occidentale var. occidentale
© 2009 Neal Kramer

Cirsium occidentale var. venustum

cobwebby thistle, Venus thistle, red thistle, coulter's thistle native Perennial herb
Cirsium occidentale var. venustum
© 2004 David A. Tharp
Cirsium occidentale var. venustum
© 2001 Jeff Abbas
Cirsium occidentale var. venustum
© 2010 James M. Andre

Cirsium ochrocentrum

yellow spined thistle, Beaumont thistle not native WEED Perennial herb
Cirsium ochrocentrum
© 2004 Robert Sivinski
Cirsium ochrocentrum
© 2001 CDFA

Cirsium ochrocentrum var. ochrocentrum

Yellowspine thistle not native Perennial herb
no photo

Cirsium praeteriens

Palo Alto thistle native
RARE SPECIES
Perennial herb
no photo

Cirsium quercetorum

Alameda County thistle, brownie thistle native Annual, Perennial herb
Cirsium quercetorum
© 2007 Neal Kramer
Cirsium quercetorum
© 2007 Neal Kramer

Cirsium remotifolium

fewleaf thistle, few leaved thistle native Perennial herb
Cirsium remotifolium
© 2008 Keir Morse
Cirsium remotifolium
© 2011 Aaron Arthur

Cirsium remotifolium var. odontolepis

Pacific fringed thistle native Perennial herb
no photo

Cirsium remotifolium var. remotifolium

Remote-leaved thistle native Perennial herb
no photo

Cirsium remotifolium var. rivulare

Klamath thistle native Perennial herb
no photo

Cirsium rhothophilum

surf thistle native
RARE SPECIES
Perennial herb
Cirsium rhothophilum
© 1984 California Native Plant Society
Cirsium rhothophilum
© 1984 California Native Plant Society

Cirsium scabrum

rough thistle not native Perennial herb
no photo

Cirsium scariosum

elk thistle, Dwarf Thistle native Perennial herb
Cirsium scariosum
© 2005 Christopher L. Christie
Cirsium scariosum
© 2006 Steve Matson

Cirsium scariosum var. americanum

Dinnerplate thistle native Perennial herb
Cirsium scariosum var. americanum
© 2013 Robert F Norris

Cirsium scariosum var. citrinum

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

Cirsium scariosum var. congdonii

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

Cirsium scariosum var. loncholepis
JM93:  Cirsium loncholepis

La graciosa thistle native
RARE SPECIES
Perennial herb
Cirsium scariosum var. loncholepis
© 2011 Chris Winchell
Cirsium scariosum var. loncholepis
© 2011 Chris Winchell

    Suggested Citation
    Calflora: Information on California plants for education, research and conservation. [web application]. 2014. Berkeley, California:
    The Calflora Database [a non-profit organization].
    Available: http://www.calflora.org/   (Accessed: Nov 23, 2014).

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

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