Sonchus oleraceus L.
Family: Asteraceae
common sow-thistle,  more...
Sonchus oleraceus image
Matthew L. Wagner  
Etymology: Sonchus: the Greek name for sowthistle
Plants: erect, annual, 4"-80" tall, mostly hairless forb with milky juice
Leaves: 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
Flowers: head 1/2"-1" wide with yellow ray flowers; inflorescence of several heads in open, branched clusters; blooms July-Oct.
Fruits: wrinkled, dry seed faintly 3-5 ribbed on each side
Habitat: disturbed sites
Conservation Status: Introduced - naturalized
Sonchus oleraceus image
Matthew L. Wagner  
Sonchus oleraceus image
Paul Drobot  
Sonchus oleraceus image
Paul Drobot  
Sonchus oleraceus image
Paul Drobot  
Sonchus oleraceus image
Botanical Illustration  
Sonchus oleraceus image
Botanical Illustration  
Sonchus oleraceus image
Botanical Illustration  
Sonchus oleraceus image
Botanical Illustration  
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
Sonchus oleraceus image
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