Robert W. Freckmann Herbarium


  Cirsium palustre (L.) Scop. image
Photographer: Steve C. Garske           

Botanical Illustration

Emmet J. Judziewicz

Emmet J. Judziewicz

Christopher Noll

Steve C. Garske

Steve C. Garske
Family Asteraceae
Cirsium palustre (L.) Scop.
European swamp thistle, marsh thistle
Cirsium: derived from the Greek kirsion, "a kind of thistle;" also cirsos meaning "a swollen vein" for which thistle was once a remedy
palustre: "of marshes"
  Prohibited/Restricted Invasive - Eradicate!  Stop It symbol- click for definition
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - naturalized; ecologically invasive
Plant: erect, biennial, 1' - 6 1/2' tall forb; stems spiny-winged
Flower: head 3/4" wide with purple disk flowers, bracts (phyllaries) tips not spiny; inflorescence of usually many clustered heads; blooms June-July
Fruit:dry seed on fluffy, feathery-divided pappus usually less than 1/3" long
Habitat: we to moist; woods, roadsides
(Glossary)

More Information Natural Communities Herbarium Specimens
All Cirsium list Google- Images or Text

Flora of North America (off site)
Synonyms 
Cnicus palustris (L.) Willd.

         
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