Robert W. Freckmann Herbarium


  Carduus acanthoides L. image
Photographer: Emmet J. Judziewicz           

Botanical Illustration

Clifford Orsted

Hugh H. Iltis

Kenneth J. Sytsma

Kenneth J. Sytsma

Robert Bierman
Family Asteraceae
Carduus acanthoides L.
plumeless thistle, spiny plumeless thistle
Carduus: the classical Latin name for thistle
acanthoides: like the genus Acanthus
  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'-4' tall forb; stems tough, spiny-winged
Flower: head 1/2"-1" wide with pink disk flowers, bracts (phyllaries) spiny; inflorescence an erect, usually a solitary head or in clusters at the ends of the branches and (if present) on a long, winged stalk; blooms July-Oct.
Fruit:4-angled, dry seed with a fluffy, but not feathery pappus
Leaf:deeply lobed to pinnately-divided
Habitat: disturbed sites, roadsides
(Glossary)

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

Flora of North America (off site)
Synonyms 
There are no synonyms for this taxon.

         
  Home
Faculty
Botany News/Events
Projects
Book We Recommend
Historical Botanists
Other Links
Botanical Club of Wisconsin (off site)
UW-Stevens Point Biology Dept.
 
Plants of Wisconsin
Vascular Plants
Bryophytes
Ethnobotany
Natural Communities
Botany News/Events
Other Links
Lichens (off site)   
Tom Volk's Fungi (off site)
Taxonomy of Vascular Plants
                          Vascular Plants
Browse by Identification Guides
Family Wildflowers
Genus Trees
Common Names Shrubs
Search by Vines
Names Aquatic-Semi aquatic
Specimens Ferns - Fern Allies
Blooming Times Grasses, Sedges, or Rushes
County & Status Other Resources  
Town Range Taxonomy of Vascular Plants
  WI Checklist & CofC Values
Bryophytes
Browse by:
Common Name
Genus
Search by:
County
 Name
Copyright 2012 Permissions Contact Us Web Map