Sonchus arvensis

Field sowthistle
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Cichorieae
Genus:	Sonchus
Species:	S. arvensis
Binomial name
Sonchus arvensis L. 1753
Synonyms
Synonymy Hieracium arvense (L.) Scop. Sonchoseris arvensis Fourr. Sonchoseris decora Fourr. Sonchus exaltatus Wallr. Sonchus glandulosus Schur Sonchus hantoniensis Sweet Sonchus hispidus Gilib. Sonchus laevissimus Schur Sonchus nitidus Vill. Sonchus pratensis Schur Sonchus repens Bubani Sonchus vulgaris Rouy Sonchus humilis N.I.Orlova Sonchus ketzkhovelii Schchian Sonchus uliginosus M.Bieb.

Sonchus arvensis, the field milk thistle,field sowthistle,perennial sow-thistle,corn sow thistle, dindle, gutweed, swine thistle, or tree sow thistle, is a species of flowering plant in the daisy family Asteraceae.

Sonchus arvensis is native to Europe, where it is widespread across most of the continent. It has also become naturalized in many other regions, and is considered an invasive noxious weed in some places.

The plant produces conspicuous yellow flowers that are visited by various types of insects, especially hoverflies of the genus Eristalis.

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Wikipedia