Sonchus (weeds)

Asteraceae (weeds) • Asterales (weeds) • Eudicotyledons • all weeds • pests-diseases-weeds

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Sonchus oleraceus (click on image to enlarge it)
Author(s): Robert Vidéki, Doronicum Kft., Hungary
Source: IPM Images

Sonchus L. - (sow-thistles)

This genus contains around 80 species of mainly herbaceous plants. Several are widespread agricultural weeds and are common on roadsides. These include Sonchus oleraceus, S. arvensis, and S. asper. Affected crops include cereals, vineyards and field crops like beet or canola. The plants typically have well developed rhizomes, a basal rosette of irregularly lobed leaves and yellow composite flowerheads. They produce many feathery seeds that disperse by wind.

Currently, the following species have been entered into the system:

• Sonchus arvensis (weed)
• Sonchus asper (weed)
• Sonchus oleraceus (weed)
• Sonchus tenerrimus (weed)