Cirsium arvense (L.) Scop.Non-Native
SynonymsCarduus arvensis (L.) Robson
Cirsium arvense (L.) Scop. var. horridum Wimmer & Grab.
Common name(s)field thistle; Canada thistle
Conservation statusNot threatened

Found at the following sites :
Taltree Arboretum
Calumet Prairie
Marquette Park
Hegewisch Marsh
Hidden Prairie
Stockwell Woods
Indian Ridge Marsh
Ambler Expansion
Cressmoor Prairie
Little Calumet River Prairie & Wetlands
Bur Oak Woods
Arcelor Mittal Burns Harbor
Marquette Pannes
Beaver Dam
Gibson Woods Nature Preserve
Samuelson Fen
UofC FieldStation-MI
Roxana Marsh
Pine Station

Present Absent Previous, not current
Plants - See list of all plant species found at NIRMI sites
Fungi - See list of all fungi species found at NIRMI sites

Protected Species Policy
To prevent poaching, NIRMI does not provide the location of any endangered, threatened, or otherwise protected species found within any of our plots. All lists, charts, and calculations (richness, FQI, etc.) therefore exclude these species as well.
If you are conducting research and have a legitimate need for this unfiltered data, please contact us at
nirmi (at) iun (dot) edu.

(C)opyright 2010-2024 NIRMI