Sonchus oleraceus


Common Name:  sow thistle 

Family:   Asteraceae 

Distribution/Origin:  Europe 

Leaf/Bud: 

Flower/Inflorescence: yellow composite flower, looks similar to dandelion 

Fruit/Seed: spread aggressively by seed  

Size: 

Habit: upright 

Form: clumping 

Culture: spreads by seed carried by wind or water, prefers sun but can tolerate most conditions 

Landscape Use: annual weed 

Notes: looks similar to dandelion - doesn't flower terminally, umbel-like inflorescence, used medicinally and in Chinese cuisine