ragwort

• Nom désignant une plante herbacée à fleurs jaunes, souvent considérée comme une mauvaise herbe ; en Europe, il s'agit notamment du séneçon jacobée, potentiellement toxique pour le bétail, et en Amérique, de plantes du genre Senecio à capitules jaunes.

A noun referring to a widespread European weed with yellow daisylike flowers, sometimes considered obnoxious and toxic to cattle if consumed in quantity; also refers to an American ragwort with yellow flowers.

1. Common RagwortB2formalbritishscientific

   A widespread European weed with yellow daisy-like flowers, known for being toxic to livestock if eaten in large amounts.

   Séneçon de Jacob

   • Farmers often remove ragwort from pastures to protect their cattle.
   • The bright yellow flowers of ragwort can be seen along roadsides in summer.
   • Ragwort is considered an obnoxious weed in many agricultural areas.

   Synonymesbenweedtansy ragwort

2. American RagwortB2formalamericanscientific

   A North American plant with yellow flowers, belonging to the same genus as common ragwort.

   Séneçon de l'Ouest

   • American ragwort blooms in late summer across many fields.
   • The yellow blossoms of American ragwort attract various pollinators.
   • This species of ragwort is native to the eastern United States.