Common ragwort Senecio jacobaea

Best time to see: mid Jun to mid Oct

Key facts

A widespread yellow daisy that causes problems in pasture and hay meadows because it is poisonous to livestock

Food plant for yellow-and-black caterpillars of the cinnabar moth, which uses the plant's poison for defence

  • Main photo
  • with cinnabars

Photo © Pat Allen

Photo © Tony Gunton