Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Asteraceae / Compositae ⟩ Sonchus asper / prickly sow-thistle

Sonchus asper (L.) Hill

prickly sow-thistle (Asteraceae / Compositae)

 SpreadBias within British IslesDirection of bias
Very widespreadNegligible tendencyW
Plant Atlas 2020
BSBI Distribution Map

The auricles on the leaf-bases of Sonchus asper are pointed, whereas those of Sonchus oleraceus are rounded.

Shotover (VC23: Oxfordshire); 2014-07-08

 prickly sow-thistle / Sonchus asper: The auricles on the leaf-bases of _Sonchus asper_ are pointed, whereas those of _Sonchus oleraceus_ are rounded.

Inflorescences

Shotover (VC23: Oxfordshire); 2014-07-08

 prickly sow-thistle / Sonchus asper: Inflorescences

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne