Robert W. Freckmann Herbarium


  Sonchus oleraceus L. image
Photographer: Paul Drobot           

Botanical Illustration

Botanical Illustration

Botanical Illustration

Botanical Illustration

Matthew L. Wagner

Matthew L. Wagner

Paul Drobot

Paul Drobot
Family Asteraceae
Sonchus oleraceus L.
common sow-thistle, field sow-thistle
Sonchus: the Greek name for sowthistle
oleraceus: of the vegetable garden
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - naturalized
Plant: erect, annual, 4"-80" tall, mostly hairless forb with milky juice
Flower: head 1/2"-1" wide with yellow ray flowers; inflorescence of several heads in open, branched clusters; blooms July-Oct.
Fruit:wrinkled, dry seed faintly 3-5 ribbed on each side
Leaf:alternate, arrow-shaped bases clasping but not curving around the stem, toothed to pinnately-divided, mostly soft with edges only slightly prickly; lower leaves with deep lobes and often with a triangular end-segment; upper leaves smaller and less divided
Habitat: disturbed sites
Notes: similar to S. aspera but less prickly and with wrinkled seed
(Glossary)

More Information Natural Communities Herbarium Specimens
All Sonchus list Ethnobotany Information 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