Calflora
6 matching records.
Searching for: genus: Carduus
Click on the Scientific Name to see a Taxon Report.
Carduus acanthoides
Spiny plumeless thistle
invasive non-native
Perennial herb
Carduus acanthoides
© 2001 CDFA
CalPhotos (UCB)
Carduus acanthoides
© 2010 Dr.Thomas K. Voekler
CalPhotos (UCB)
Carduus acanthoides
© 2001 CDFA
CalPhotos (UCB)
Carduus acanthoides ssp. acanthoides
Plumeless thistle
non-native
Perennial herb
Carduus acanthoides ssp. acanthoides
© 2010 Dr.Thomas K. Voekler
CalPhotos (UCB)
Carduus acanthoides ssp. acanthoides
© 2012 Jean Pawek
CalPhotos (UCB)
Carduus nutans
Nodding plumeless thistle
invasive non-native
Perennial herb
Carduus nutans
© 2018 Elizabeth Brusati
Carduus nutans
© 2007 Steve Matson
CalPhotos (UCB)
Carduus nutans
© 2007 Thomas Stoughton
CalPhotos (UCB)
Carduus pycnocephalus
Italian thistle
invasive non-native
Annual herb
Carduus pycnocephalus
© 2019 Gary McDonald
Carduus pycnocephalus
© 2008 Zoya Akulova
CalPhotos (UCB)
Carduus pycnocephalus
© 2006 Chris Wagner, SBNF
CalPhotos (UCB)
Carduus pycnocephalus ssp. pycnocephalus
Italian thistle
non-native
Annual herb
Carduus pycnocephalus ssp. pycnocephalus
© 2013 Jean Pawek
CalPhotos (UCB)
Carduus pycnocephalus ssp. pycnocephalus
© 2015 Robert Sikora
CalPhotos (UCB)
Carduus pycnocephalus ssp. pycnocephalus
© 2019 Gary McDonald
Carduus tenuiflorus
Slender flowered thistle
invasive non-native
Annual herb
Carduus tenuiflorus
© 2011 Zoya Akulova
CalPhotos (UCB)
Carduus tenuiflorus
© 2001 CDFA
CalPhotos (UCB)
Carduus tenuiflorus
© Charles Webber 1998 California Academy of Sciences
CalPhotos (UCB)
    Suggested Citation
    Calflora: Information on California plants for education, research and conservation. [web application]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Dec 05, 2020).

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