Robert W. Freckmann Herbarium


  Cirsium flodmanii (Rydb.) Arthur image
Photographer: Emmet J. Judziewicz           

Derek Anderson

Emmet J. Judziewicz
Family Asteraceae
Cirsium flodmanii (Rydb.) Arthur
Flodman's thistle, prairie thistle
Cirsium: derived from the Greek kirsion, "a kind of thistle;" also cirsos meaning "a swollen vein" for which thistle was once a remedy
flodmanii: for J.H. Flodman
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - adventive
Plant: erect, perennial, 12"-32" tall forb spread by creeping roots which become taproots on the new plants; usually a single stem covered with dense, whitish fuzz
Flower: head 1" wide with a rounded base and purple disk flowers; inflorescence with one to a few clustered heads; blooms June-Sept.
Fruit:dry seed with a yellow band on fluffy, feathery-divided pappus
Leaf:usually deeply pinnately-divided with long triangular lobes, underside with whitish fuzz
Habitat: moist; poorly-drained areas mostly along railroads
Notes: similar to C. undulatum
(Glossary)

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

Flora of North America (off site)
Synonyms 
Carduus oblanceolatus Rydb.
Cirsium nebraskense (Britton) Lunell var. discissum Lunell
Cirsium oblanceolatum (Rydb.) K.Schum.

         
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