ragwort

noun

Etymology: From rag (referring to the ragged leaves) + wort.

1. Any of a number of wild flowering plants with yellow flowers in the family Asteraceae, mostly belonging to Senecio and related genera.

   “Ragwort is under the command of dame Venus, and cleanses, digests and discusses.”

   “Sea-poppies and ragwort were plants of ill-fame, too.”