Flora of Northern Ireland : Sonchus oleraceus

Sonchus oleraceus L.

Smooth Sow-thistle

Sonchus oleraceus

Description: Very common weed of gardens, in woodland, parkland, hedgerows, roadsides etc.

All names: Sonchus oleraceus L.; Sonchus piquetii Druce

Sonchus oleraceus : Interactive Map

Distribution Map from NBN: Sonchus oleraceus at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Sonchus oleraceus at iNaturalist World Species Observations database.

Hackney, P., 2026. Sonchus oleraceus. L.. [In] Flora of Northern Ireland.
https://habitas.org/flora/species.php?item=4543. Accessed on 2026-11-02.