Vascular Plant Herbarium

Vascular Plant Database Genus Results

Category: Dicots
Family Name: Asteraceae

Cirsium - [maps | photos]

• Cirsium altissimum (L.) Spreng.
  Common Name: tall thistle
  Synonyms:
  

         • Carduus altissimus L.

• Cirsium arvense * (L.) Scop.
  NWI TN: Facultative Upland +
  Common Name: Canada thistle
  Synonyms:
  

         • Carduus arvensis (L.) Robson

• Cirsium carolinianum (Walter) Fernald & B.G. Schube
  Common Name: soft thistle
  Synonyms:
  

         • Carduus carolinianus Walt.

• Cirsium discolor (Muhl. ex Willd.) Spreng.
  Common Name: field thistle
  Synonyms:
  

         • Carduus discolor (Muhl. ex Willd.) Nutt.

• Cirsium horridulum Michx.
  NWI TN: Facultative +
  Common Name: yellow thistle
  Synonyms:
  

         • Carduus spinosissimus Walt.

• Cirsium horridulum var. vittatum (Small) R.W. Long
  NWI TN: Facultative +
  Common Name: yellow thistle
  Synonyms:
  

         • Carduus vittatus Small

         • Cirsium vittatum (Small) Small

• Cirsium muticum Michx.
  NWI TN: Obligate Wetland
  Common Name: swamp thistle
  Synonyms:
  

         • Carduus muticus (Michx.) Pers.

• Cirsium vulgare * (Savi) Ten.
  NWI TN: Facultative
  Common Name: bull thistle
  Synonyms:
  

         • Carduus vulgaris Savi

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*Non-native taxon known to be naturalized in Tennessee

All names & statuses follow the Guide to the Vascular Plants of Tennessee (2015).
Click here for a description of rare, threatened, or endangered (RTE) status & National Wetland Indicator (NWI) status.

If you have any questions or comments, please contact Dr. Jessica M. Budke or Margaret Oliver.